Heel Pain in Psoriatic Arthropathy: Analysis of a Series of 291 Patients

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Both showed evidence of Schnitzler syndrome (intermittent episodes of fever, urticaria, abdominal pain, angioedema, arthritis). He had a 2-month history of progressive dyspnea even on minimum exertion, polyarthritis, hypertension, mechanical edema and, on the preceding days, cough and increased dyspnea. Exploration revealed Chávez’ pulmonary complex and right basal condensation syndrome; radiograph showing evidence of pulmonary hypertension, 4 arches, right basal pneumonitis and homolateral effusion. 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Análisis de una serie de 291 pacientes" ] ] "textoCompleto" => "IntroductionPsoriatic arthritis (PsA) is a chronic inflammatory disease included in the group of spondyloarthritides (SpA).<a class="elsevierStyleCrossRef" href="#bib0050">1</a> Enthesis is a site in which tendons, ligaments and the joint capsule attach to the bone. Enthesis involvement is one of the typical manifestations of SpA, and is included in the Classification Criteria for Psoriatic Arthritis.<a class="elsevierStyleCrossRef" href="#bib0055">2</a> Heel pain is one of the most specific clinical manifestations, although not exclusive, of enthesopathy.<a class="elsevierStyleCrossRef" href="#bib0060">3</a>The objective of our study was to determine the prevalence of heel pain as a subrogated variable of enthesitis in a sample of patients with PsA and analyze its association with other demographic or anthropometric variables of the disease.Materials and MethodsStudy DesignThe study was carried out in the Teaching Hospital of Bellvitge, a tertiary center located in L’Hospitalet de Llobregat (Barcelona, Spain). Between 1992 and 2015, 347 patients were registered in a database of individuals with PsA. The patients had been assessed every 6–12 months by the same clinician in accordance with a protocol. All of the patients included met the Classification Criteria for Psoriatic Arthritis.<a class="elsevierStyleCrossRef" href="#bib0055">2</a> In 2015, in all of the patients who came to our department, we assessed the clinically significant history of heel pain. The literature provides no established definition. Thus, in this report, we considered clinically significant heel pain to be that that produced pain in the plantar or posterior region of the heel that persisted for more than 1 month. We included in the study the 291 patients in whom this variable was recorded. In the remainder of the patients in whom this variable was not recorded, this was due to death or to individuals who were lost to follow-up.Clinical Research Ethics CommitteeThe clinical research ethics committee of the Teaching Hospital of Bellvitge approved the constitution of the observation cohort and the patients provided their informed consent.Characteristics of the Patients and the Study VariablesThe study data were collected prospectively by the same clinician in the department, in accordance with the established protocol. The demographic data recorded were: age, sex and body mass index. The characteristics on PsA included were: ages at the onset of psoriasis and of PsA, duration of PsA, history of psoriasis or PsA in first-degree family members, preferred pattern of peripheral arthritis (oligo vs polyarticular), axial involvement, lumbar pain lasting at least 3 months in patients less than 45 years of age, radiological sacroiliitis (according to the modified New York criteria), presence of resorptive or arthritis mutilans, rheumatologist-confirmed history of dactylitis, distal interphalangeal involvement, moderate-to-severe psoriasis (defined by the Psoriasis Area Severity Index (PASI) as greater than 10 (in the past or present) and/or the need for systemic treatment for psoriasis or treatment with ultraviolet A), onychopathy, palmoplantar psoriasis and positivity for human leukocyte antigen (HLA)-B27. Lastly, we also reported data concerning treatment received with biological agents.Statistical AnalysisThe demographic characteristics, those of the disease and the treatment received were evaluated in patients with and without heel pain. In the univariate analysis, we utilized the chi-square test and analysis of variance (ANOVA). The variables in which the P value was less than .05 were introduced in the multivariate binary logistic regression model. All of the statistical studies were performed with the SPSS version 20.0 statistical package.ResultsCharacteristics of the study population: of the cohort of 347 patients, the variable heel pain was recorded in 291. The latter were the patients analyzed and whose results are summarized in <a class="elsevierStyleCrossRef" href="#tbl0005">Table 1</a>. The cumulative prevalence of heel pain in our series was 35.1%.<elsevierMultimedia ident="tbl0005"></elsevierMultimedia>In the univariate analysis (<a class="elsevierStyleCrossRef" href="#tbl0005">Table 1</a>), we found a statistically significant association (P<.05) between heel pain and younger age, an earlier onset of the skin and joint disease, a history of dactylitis and having a first-degree family member with PsA.There were no differences between sexes, in body mass index, the arthritis pattern, positivity for HLA-B27, a history of psoriasis in first-degree family members, the presence of moderate-to-severe psoriasis, palmoplantar psoriasis or onychopathy, or in the utilization of biological agents.In the multivariate analysis, both a history of dactylitis and younger age showed statistical significance (P<.05) (<a class="elsevierStyleCrossRef" href="#tbl0005">Table 1</a>).DiscussionThe cumulative prevalence of heel pain in our series was 35%. In the general population, it is 13%.<a class="elsevierStyleCrossRef" href="#bib0065">4</a> Heel pain can be produced by diverse causes,<a class="elsevierStyleCrossRef" href="#bib0060">3</a> it being one of the most specific clinical manifestations of enthesopathy.<a class="elsevierStyleCrossRef" href="#bib0070">5</a> In this report, we chose heel pain for the study of enthesitis, as it is a manifestation of Achilles enthesitis and enthesopathy. At other sites it is more difficult to interpret because they coincide with fibromyalgia tender points.<a class="elsevierStyleCrossRef" href="#bib0075">6</a> The prevalence of enthesitis in PsA is 35%.<a class="elsevierStyleCrossRef" href="#bib0080">7</a> The fact that the prevalence in this study was greater than that reported in the general population (35% vs 13%) and is more similar to the prevalence of enthesitis is probably due to the fact that, in PsA, heel pain is frequently a manifestation of enthesitis.In our series, the association between heel pain and dactylitis was statistically significant. Dactylitis is one of the most characteristic clinical manifestations of PsA. A number of groups have studied the etiology and pathogenesis of dactylitis, but it continues to be controversial. Eshed et al. defend that enthesitis is the primary lesion of dactylitis.<a class="elsevierStyleCrossRef" href="#bib0085">8</a> Considering heel pain to be a subrogated variable of enthesitis, the association observed in this report supports the thesis that enthesitis and dactylitis may have a common link in their pathophysiology.Finally, in this study, we observed an association between heel pain and an earlier onset of the skin an joint disease. The literature includes descriptions in which patients with an early onset of PsA have an Achilles enthesitis,<a class="elsevierStyleCrossRef" href="#bib0090">9</a> but there have been no reports of an association between age and cutaneous psoriasis.The strengths of our study lie in the sample size and the fact that the series comes from an observational cohort in which the patients were assessed by a single rheumatologist. Among the limitations, we should mention that we are dealing with a cross-sectional retrospective study design. That makes it impossible to confirm that heel pain is secondary to enthesitis. On the other hand, given that the cumulative prevalence of heel pain has been established, we cannot rule out the existence of memory bias.In conclusion, in this study, 35% of the patients had clinically significant heel pain and its presence was associated with dactylitis, with first-degree family members with a history of PsA and an earlier onset of psoriasis and PsA.Ethical DisclosuresProtection of human and animal subjectsThe authors declare that no experiments were performed on humans or animals for this study.Confidentiality of dataThe authors declare that they have followed the protocols of their work center on the publication of patient data.Right to privacy and informed consentThe authors declare that no patient data appear in this article.FundingThe design, preparation and analysis of this study were financed with recourses of the Rheumatology Department of Teaching Hospital of Bellvitge.Conflicts of InterestDr. Jesús Rodriguez Moreno collaborated during this time with different pharmaceutical industries by means of presentations in congresses and the performance of other clinical trials. The authors declare they have no conflicts of interest." "textoCompletoSecciones" => array:1 [ "secciones" => array:12 [ 0 => array:3 [ "identificador" => "xres1085066" "titulo" => "Abstract" "secciones" => array:4 [ 0 => array:2 [ "identificador" => "abst0005" "titulo" => "Objective" ] 1 => array:2 [ "identificador" => "abst0010" "titulo" => "Material and methods" ] 2 => array:2 [ "identificador" => "abst0015" "titulo" => "Results" ] 3 => array:2 [ "identificador" => "abst0020" "titulo" => "Conclusions" ] ] ] 1 => array:2 [ "identificador" => "xpalclavsec1029541" "titulo" => "Keywords" ] 2 => array:3 [ "identificador" => "xres1085067" "titulo" => "Resumen" "secciones" => array:4 [ 0 => array:2 [ "identificador" => "abst0025" "titulo" => "Objetivo" ] 1 => array:2 [ "identificador" => "abst0030" "titulo" => "Material y métodos" ] 2 => array:2 [ "identificador" => "abst0035" "titulo" => "Resultados" ] 3 => array:2 [ "identificador" => "abst0040" "titulo" => "Conclusiones" ] ] ] 3 => array:2 [ "identificador" => "xpalclavsec1029540" "titulo" => "Palabras clave" ] 4 => array:2 [ "identificador" => "sec0005" "titulo" => "Introduction" ] 5 => array:3 [ "identificador" => "sec0010" "titulo" => "Materials and Methods" "secciones" => array:4 [ 0 => array:2 [ "identificador" => "sec0015" "titulo" => "Study Design" ] 1 => array:2 [ "identificador" => "sec0020" "titulo" => "Clinical Research Ethics Committee" ] 2 => array:2 [ "identificador" => "sec0025" "titulo" => "Characteristics of the Patients and the Study Variables" ] 3 => array:2 [ "identificador" => "sec0030" "titulo" => "Statistical Analysis" ] ] ] 6 => array:2 [ "identificador" => "sec0035" "titulo" => "Results" ] 7 => array:2 [ "identificador" => "sec0040" "titulo" => "Discussion" ] 8 => array:3 [ "identificador" => "sec0045" "titulo" => "Ethical Disclosures" "secciones" => array:3 [ 0 => array:2 [ "identificador" => "sec0050" "titulo" => "Protection of human and animal subjects" ] 1 => array:2 [ "identificador" => "sec0055" "titulo" => "Confidentiality of data" ] 2 => array:2 [ "identificador" => "sec0060" "titulo" => "Right to privacy and informed consent" ] ] ] 9 => array:2 [ "identificador" => "sec0065" "titulo" => "Funding" ] 10 => array:2 [ "identificador" => "sec0070" "titulo" => "Conflicts of Interest" ] 11 => array:1 [ "titulo" => "References" ] ] ] "pdfFichero" => "main.pdf" "tienePdf" => true "fechaRecibido" => "2016-11-30" "fechaAceptado" => "2017-03-09" "PalabrasClave" => array:2 [ "en" => array:1 [ 0 => array:4 [ "clase" => "keyword" "titulo" => "Keywords" "identificador" => "xpalclavsec1029541" "palabras" => array:5 [ 0 => "Psoriatic arthritis" 1 => "Psoriasis" 2 => "Heel" 3 => "Pain" 4 => "Enthesopathy" ] ] ] "es" => array:1 [ 0 => array:4 [ "clase" => "keyword" "titulo" => "Palabras clave" "identificador" => "xpalclavsec1029540" "palabras" => array:5 [ 0 => "Artritis psoriásica" 1 => "Psoriasis" 2 => "Talón" 3 => "Dolor" 4 => "Entesopatía" ] ] ] ] "tieneResumen" => true "resumen" => array:2 [ "en" => array:3 [ "titulo" => "Abstract" "resumen" => "ObjectiveTo determine the prevalence of heel pain in a series of patients with psoriatic arthritis (PsA). Material and methodsCross-sectional, observational and retrospective study of a series of 347 patients. All patients fulfilled the CASPAR criteria for PsA and 291 had a clinically significant history of heel pain. The statistical analysis was performed using chi-square test, ANOVA and binary logistic regression. ResultsThirty-five percent of the patients had clinically significant heel pain. A significant association was established between an early onset of skin and joint involvement in the disease and the development of heel pain. However, no significant correlation was found between disease duration and the presence of heel pain. History of dactylitis and PsA in first-degree family members was also statistically associated with this complication. ConclusionsClinically significant heel pain was recorded in one third of the patients in this series. There was a statistically significant association with dactylitis, PsA in first-degree family members and an earlier onset of joint and skin disease." "secciones" => array:4 [ 0 => array:2 [ "identificador" => "abst0005" "titulo" => "Objective" ] 1 => array:2 [ "identificador" => "abst0010" "titulo" => "Material and methods" ] 2 => array:2 [ "identificador" => "abst0015" "titulo" => "Results" ] 3 => array:2 [ "identificador" => "abst0020" "titulo" => "Conclusions" ] ] ] "es" => array:3 [ "titulo" => "Resumen" "resumen" => "ObjetivoDeterminar la prevalencia de talalgia clínicamente significativa en una serie de pacientes con artritis psoriásica (APs) y analizar su asociación con otras variables de la enfermedad. Material y métodosEstudio transversal, observacional, retrospectivo. De la cohorte de 347 pacientes afectos de APs, todos cumplían los criterios de clasificación CASPAR para APs, se seleccionaron 291 en los que estaba recogido el antecedente de talalgia clínicamente significativa. Para el análisis estadístico se ha utilizado la prueba de chi-cuadrado, el ANOVA y la prueba de regresión logística binaria. ResultadosEl 35% de los pacientes presentó talalgia clínicamente significativa. La talalgia se asoció significativamente con un inicio más precoz de la enfermedad cutánea y articular, pero no con la duración de la enfermedad. También fue significativa su asociación con la dactilitis y antecedente familiar de primer grado con APs. ConclusionesLa talalgia clínicamente significativa se presentó en un tercio de los pacientes de la serie. Se asoció con dactilitis, antecedente familiar de primer grado con APs y un inicio más precoz de la enfermedad cutánea y articular." "secciones" => array:4 [ 0 => array:2 [ "identificador" => "abst0025" "titulo" => "Objetivo" ] 1 => array:2 [ "identificador" => "abst0030" "titulo" => "Material y métodos" ] 2 => array:2 [ "identificador" => "abst0035" "titulo" => "Resultados" ] 3 => array:2 [ "identificador" => "abst0040" "titulo" => "Conclusiones" ] ] ] ] "NotaPie" => array:1 [ 0 => array:2 [ "etiqueta" => "☆" "nota" => "Please cite this article as: Morales Ivorra I, Juárez López P, López de Recalde M, Carvalho PD, Rodriguez Moreno J. La talalgia en la artropatía psoriásica. Análisis de una serie de 291 pacientes. Reumatol Clin. 2018;14:290–293." ] ] "multimedia" => array:1 [ 0 => array:8 [ "identificador" => "tbl0005" "etiqueta" => "Table 1" "tipo" => "MULTIMEDIATABLA" "mostrarFloat" => true "mostrarDisplay" => false "detalles" => array:1 [ 0 => array:3 [ "identificador" => "at1" "detalle" => "Table " "rol" => "short" ] ] "tabla" => array:2 [ "tablatextoimagen" => array:1 [ 0 => array:2 [ "tabla" => array:1 [ 0 => """ <table border="0" frame="\n \t\t\t\t\tvoid\n \t\t\t\t" class=""><thead title="thead"><tr title="table-row"><th class="td" title="table-head " align="" valign="top" scope="col"> \t\t\t\t\t\t\n \t\t\t\t</th><th class="td" title="table-head " align="left" valign="top" scope="col">Overall series N=291 \t\t\t\t\t\t\n \t\t\t\t</th><th class="td" title="table-head " colspan="3" align="center" valign="top" scope="col" style="border-bottom: 2px solid black">Univariate analysis</th><th class="td" title="table-head " colspan="2" align="center" valign="top" scope="col" style="border-bottom: 2px solid black">Multivariate analysis</th></tr><tr title="table-row"><th class="td" title="table-head " align="" valign="top" scope="col" style="border-bottom: 2px solid black"> \t\t\t\t\t\t\n \t\t\t\t</th><th class="td" title="table-head " align="" valign="top" scope="col" style="border-bottom: 2px solid black"> \t\t\t\t\t\t\n \t\t\t\t</th><th class="td" title="table-head " align="left" valign="top" scope="col" style="border-bottom: 2px solid black">Without heel pain n/N (%), M±SD n=189 \t\t\t\t\t\t\n \t\t\t\t</th><th class="td" title="table-head " align="left" valign="top" scope="col" style="border-bottom: 2px solid black">With heel pain n/N (%), M±SD n=102 \t\t\t\t\t\t\n \t\t\t\t</th><th class="td" title="table-head " align="left" valign="top" scope="col" style="border-bottom: 2px solid black">P \t\t\t\t\t\t\n \t\t\t\t</th><th class="td" title="table-head " align="left" valign="top" scope="col" style="border-bottom: 2px solid black">OR (95% CI) \t\t\t\t\t\t\n \t\t\t\t</th><th class="td" title="table-head " align="left" valign="top" scope="col" style="border-bottom: 2px solid black">P \t\t\t\t\t\t\n \t\t\t\t</th></tr></thead><tbody title="tbody"><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">Men (n=291) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">157/291 (53.9) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">54/102 (51) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">103/189 (54.5) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">ns<a class="elsevierStyleCrossRef" href="#tblfn0005">a</a> \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="" valign="top"> \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">ns<a class="elsevierStyleCrossRef" href="#tblfn0005">a</a> \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">Dactylitis (n=289) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">132/289 (45.7) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">76/188 (40.4) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">56/101 (55.4) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">.015<a class="elsevierStyleCrossRef" href="#tblfn0005">a</a> \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">0.565 (0.335–0.951) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">.032<a class="elsevierStyleCrossRef" href="#tblfn0010">b</a> \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">Age (n=291) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">57.1±13.8 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">51.5±12.3 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">60.1±13.7 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">.000<a class="elsevierStyleCrossRef" href="#tblfn0015">c</a> \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">1.052 (1.021–1.084) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">.001<a class="elsevierStyleCrossRef" href="#tblfn0010">b</a> \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">Age at onset of Ps (n=283) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">32.7±15.2 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">34.7±15.5 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">29.1±14.0 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">.003<a class="elsevierStyleCrossRef" href="#tblfn0015">c</a> \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="" valign="top"> \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="" valign="top"> \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">Age at onset of PsA (n=288) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">40.6±14.5 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">43.0±14.6 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">36.2±13.2 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">.000<a class="elsevierStyleCrossRef" href="#tblfn0015">c</a> \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="" valign="top"> \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="" valign="top"> \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">Duration PsA (n=288) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">16.5±11.7 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">17.0±12.2 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">15.4±10.7 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">ns<a class="elsevierStyleCrossRef" href="#tblfn0015">c</a> \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="" valign="top"> \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="" valign="top"> \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">BMI (n=266) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">27.6±4.7 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">27.9±4.7 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">27.1±4.8 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">ns<a class="elsevierStyleCrossRef" href="#tblfn0015">c</a> \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="" valign="top"> \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="" valign="top"> \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">First-degree family member with Ps (n=283) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">124/283 (44.0) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">80/184 (43.4) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">44/99 (44.4) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">ns<a class="elsevierStyleCrossRef" href="#tblfn0005">a</a> \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="" valign="top"> \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="" valign="top"> \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">First-degree family member with PsA (n=273) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">27/273 (9.9) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">12/176 (6.8) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">15/97 (15.4) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">.02<a class="elsevierStyleCrossRef" href="#tblfn0015">c</a> \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="" valign="top"> \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="" valign="top"> \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="table-entry " colspan="7" align="left" valign="top"></td></tr><tr title="table-row"><td class="td" title="table-entry " colspan="7" align="left" valign="top">Peripheral arthritis pattern (n=288)</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">Oligoarticular \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">141/288 (49.0) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">85/186 (45.7) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">56/102 (54.9) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="" valign="top"> \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="" valign="top"> \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="" valign="top"> \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">Polyarticular \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">139/288 (48.3) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">96/186 (51.6) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">43/102 (42.1) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="" valign="top"> \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="" valign="top"> \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="" valign="top"> \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">Axial \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">8/288 (2.8) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">5/186 (2.7) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">3/102 (3.0) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="" valign="top"> \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="" valign="top"> \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="" valign="top"> \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="table-entry " colspan="7" align="left" valign="top"></td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">Lumbar pain before the age of 45 years and during>3 months (n=222) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">75/222 (33.8) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">48/144 (33.3) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">27/78 (34.6) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">ns<a class="elsevierStyleCrossRef" href="#tblfn0005">a</a> \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="" valign="top"> \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="" valign="top"> \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">Axial SpA (modified New York criteria) (n=275) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">33/275 (12.5) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">21/182 (11.5) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">12/93 (13.0) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">ns<a class="elsevierStyleCrossRef" href="#tblfn0005">a</a> \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="" valign="top"> \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="" valign="top"> \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">Radiological sacroiliitis (n=211) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">48/211 (22.7) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">31/134 (23.1) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">17/77 (22.1) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">ns<a class="elsevierStyleCrossRef" href="#tblfn0005">a</a> \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="" valign="top"> \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="" valign="top"> \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">Distal interphalangeal involvement (n=288) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">96/288 (33.3) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">66/188 (35.1) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">30/100 (30.0) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">ns<a class="elsevierStyleCrossRef" href="#tblfn0005">a</a> \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="" valign="top"> \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="" valign="top"> \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">Resorptive/arthritis mutilans (n=290) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">23/290 (8.0) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">17/189 (9.0) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">6/101 (5.9) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">ns<a class="elsevierStyleCrossRef" href="#tblfn0005">a</a> \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="" valign="top"> \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="" valign="top"> \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">Positive for HLA-B27 (n=264) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">34/264 (12.9) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">21/172 (12.2) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">13/92 (14.1) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">ns<a class="elsevierStyleCrossRef" href="#tblfn0005">a</a> \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="" valign="top"> \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="" valign="top"> \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">Onychopathy (n=282) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">174/282 (61.7) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">109/184 (59.2) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">65/98 (66.3) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">ns<a class="elsevierStyleCrossRef" href="#tblfn0005">a</a> \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="" valign="top"> \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="" valign="top"> \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">Palmoplantar Ps (n=280) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">56/280 (20.0) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">39/184 (21.1) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">17/96 (17.7) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">ns<a class="elsevierStyleCrossRef" href="#tblfn0005">a</a> \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="" valign="top"> \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="" valign="top"> \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top">Moderate-to-severe Ps (n=283) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">95/283 (33.6) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">62/186 (33.3) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">33/97 (34.0) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">ns<a class="elsevierStyleCrossRef" href="#tblfn0005">a</a> \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="" valign="top"> \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="" valign="top"> \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; 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Brief Report

Heel Pain in Psoriatic Arthropathy: Analysis of a Series of 291 Patients

La talalgia en la artropatía psoriásica. Análisis de una serie de 291 pacientes

Isabel Morales Ivorraa, Pablo Juárez Lópeza, Mercè López de Recaldea, Pedro David Carvalhob, Jesus Rodriguez Morenoa,

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jesus.rodriguez@bellvitgehospital.cat

Corresponding author.

a Servicio de Reumatología, Hospital Universitari de Bellvitge, L’Hospitalet de Llobregat, Barcelona, Spain

b Servicio de Reumatología, Centro Hospitalar Universitário de Coimbra, Coimbra, Portugal

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    "textoCompleto" => "<span class="elsevierStyleSections"><span id="sec0005" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0065">Introduction</span><p id="par0005" class="elsevierStylePara elsevierViewall">Psoriatic arthritis &#40;PsA&#41; is a chronic inflammatory disease included in the group of spondyloarthritides &#40;SpA&#41;&#46;<a class="elsevierStyleCrossRef" href="#bib0050"><span class="elsevierStyleSup">1</span></a> Enthesis is a site in which tendons&#44; ligaments and the joint capsule attach to the bone&#46; Enthesis involvement is one of the typical manifestations of SpA&#44; and is included in the Classification Criteria for Psoriatic Arthritis&#46;<a class="elsevierStyleCrossRef" href="#bib0055"><span class="elsevierStyleSup">2</span></a> Heel pain is one of the most specific clinical manifestations&#44; although not exclusive&#44; of enthesopathy&#46;<a class="elsevierStyleCrossRef" href="#bib0060"><span class="elsevierStyleSup">3</span></a></p><p id="par0010" class="elsevierStylePara elsevierViewall">The objective of our study was to determine the prevalence of heel pain as a subrogated variable of enthesitis in a sample of patients with PsA and analyze its association with other demographic or anthropometric variables of the disease&#46;</p></span><span id="sec0010" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0070">Materials and Methods</span><span id="sec0015" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0075">Study Design</span><p id="par0025" class="elsevierStylePara elsevierViewall">The study was carried out in the Teaching Hospital of Bellvitge&#44; a tertiary center located in L&#8217;Hospitalet de Llobregat &#40;Barcelona&#44; Spain&#41;&#46; Between 1992 and 2015&#44; 347 patients were registered in a database of individuals with PsA&#46; The patients had been assessed every 6&#8211;12 months by the same clinician in accordance with a protocol&#46; All of the patients included met the Classification Criteria for Psoriatic Arthritis&#46;<a class="elsevierStyleCrossRef" href="#bib0055"><span class="elsevierStyleSup">2</span></a> In 2015&#44; in all of the patients who came to our department&#44; we assessed the clinically significant history of heel pain&#46; The literature provides no established definition&#46; Thus&#44; in this report&#44; we considered clinically significant heel pain to be that that produced pain in the plantar or posterior region of the heel that persisted for more than 1 month&#46; We included in the study the 291 patients in whom this variable was recorded&#46; In the remainder of the patients in whom this variable was not recorded&#44; this was due to death or to individuals who were lost to follow-up&#46;</p></span><span id="sec0020" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0080">Clinical Research Ethics Committee</span><p id="par0030" class="elsevierStylePara elsevierViewall">The clinical research ethics committee of the Teaching Hospital of Bellvitge approved the constitution of the observation cohort and the patients provided their informed consent&#46;</p></span><span id="sec0025" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0085">Characteristics of the Patients and the Study Variables</span><p id="par0035" class="elsevierStylePara elsevierViewall">The study data were collected prospectively by the same clinician in the department&#44; in accordance with the established protocol&#46; The demographic data recorded were&#58; age&#44; sex and body mass index&#46; The characteristics on PsA included were&#58; ages at the onset of psoriasis and of PsA&#44; duration of PsA&#44; history of psoriasis or PsA in first-degree family members&#44; preferred pattern of peripheral arthritis &#40;oligo vs polyarticular&#41;&#44; axial involvement&#44; lumbar pain lasting at least 3 months in patients less than 45 years of age&#44; radiological sacroiliitis &#40;according to the modified New York criteria&#41;&#44; presence of resorptive or arthritis mutilans&#44; rheumatologist-confirmed history of dactylitis&#44; distal interphalangeal involvement&#44; moderate-to-severe psoriasis &#40;defined by the Psoriasis Area Severity Index &#40;PASI&#41; as greater than 10 &#40;in the past or present&#41; and&#47;or the need for systemic treatment for psoriasis or treatment with ultraviolet A&#41;&#44; onychopathy&#44; palmoplantar psoriasis and positivity for human leukocyte antigen &#40;HLA&#41;-B27&#46; Lastly&#44; we also reported data concerning treatment received with biological agents&#46;</p></span><span id="sec0030" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0090">Statistical Analysis</span><p id="par0045" class="elsevierStylePara elsevierViewall">The demographic characteristics&#44; those of the disease and the treatment received were evaluated in patients with and without heel pain&#46; In the univariate analysis&#44; we utilized the chi-square test and analysis of variance &#40;ANOVA&#41;&#46; The variables in which the <span class="elsevierStyleItalic">P</span> value was less than &#46;05 were introduced in the multivariate binary logistic regression model&#46; All of the statistical studies were performed with the SPSS version 20&#46;0 statistical package&#46;</p></span></span><span id="sec0035" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0095">Results</span><p id="par0055" class="elsevierStylePara elsevierViewall"><span class="elsevierStyleItalic">Characteristics of the study population</span>&#58; of the cohort of 347 patients&#44; the variable heel pain was recorded in 291&#46; The latter were the patients analyzed and whose results are summarized in <a class="elsevierStyleCrossRef" href="#tbl0005">Table 1</a>&#46; The cumulative prevalence of heel pain in our series was 35&#46;1&#37;&#46;</p><elsevierMultimedia ident="tbl0005"></elsevierMultimedia><p id="par0065" class="elsevierStylePara elsevierViewall">In the univariate analysis &#40;<a class="elsevierStyleCrossRef" href="#tbl0005">Table 1</a>&#41;&#44; we found a statistically significant association &#40;<span class="elsevierStyleItalic">P</span><span class="elsevierStyleHsp" style=""></span>&#60;<span class="elsevierStyleHsp" style=""></span>&#46;05&#41; between heel pain and younger age&#44; an earlier onset of the skin and joint disease&#44; a history of dactylitis and having a first-degree family member with PsA&#46;</p><p id="par0075" class="elsevierStylePara elsevierViewall">There were no differences between sexes&#44; in body mass index&#44; the arthritis pattern&#44; positivity for HLA-B27&#44; a history of psoriasis in first-degree family members&#44; the presence of moderate-to-severe psoriasis&#44; palmoplantar psoriasis or onychopathy&#44; or in the utilization of biological agents&#46;</p><p id="par0085" class="elsevierStylePara elsevierViewall">In the multivariate analysis&#44; both a history of dactylitis and younger age showed statistical significance &#40;<span class="elsevierStyleItalic">P</span><span class="elsevierStyleHsp" style=""></span>&#60;<span class="elsevierStyleHsp" style=""></span>&#46;05&#41; &#40;<a class="elsevierStyleCrossRef" href="#tbl0005">Table 1</a>&#41;&#46;</p></span><span id="sec0040" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0100">Discussion</span><p id="par0095" class="elsevierStylePara elsevierViewall">The cumulative prevalence of heel pain in our series was 35&#37;&#46; In the general population&#44; it is 13&#37;&#46;<a class="elsevierStyleCrossRef" href="#bib0065"><span class="elsevierStyleSup">4</span></a> Heel pain can be produced by diverse causes&#44;<a class="elsevierStyleCrossRef" href="#bib0060"><span class="elsevierStyleSup">3</span></a> it being one of the most specific clinical manifestations of enthesopathy&#46;<a class="elsevierStyleCrossRef" href="#bib0070"><span class="elsevierStyleSup">5</span></a> In this report&#44; we chose heel pain for the study of enthesitis&#44; as it is a manifestation of Achilles enthesitis and enthesopathy&#46; At other sites it is more difficult to interpret because they coincide with fibromyalgia tender points&#46;<a class="elsevierStyleCrossRef" href="#bib0075"><span class="elsevierStyleSup">6</span></a> The prevalence of enthesitis in PsA is 35&#37;&#46;<a class="elsevierStyleCrossRef" href="#bib0080"><span class="elsevierStyleSup">7</span></a> The fact that the prevalence in this study was greater than that reported in the general population &#40;35&#37; vs 13&#37;&#41; and is more similar to the prevalence of enthesitis is probably due to the fact that&#44; in PsA&#44; heel pain is frequently a manifestation of enthesitis&#46;</p><p id="par0105" class="elsevierStylePara elsevierViewall">In our series&#44; the association between heel pain and dactylitis was statistically significant&#46; Dactylitis is one of the most characteristic clinical manifestations of PsA&#46; A number of groups have studied the etiology and pathogenesis of dactylitis&#44; but it continues to be controversial&#46; Eshed et al&#46; defend that enthesitis is the primary lesion of dactylitis&#46;<a class="elsevierStyleCrossRef" href="#bib0085"><span class="elsevierStyleSup">8</span></a> Considering heel pain to be a subrogated variable of enthesitis&#44; the association observed in this report supports the thesis that enthesitis and dactylitis may have a common link in their pathophysiology&#46;</p><p id="par0115" class="elsevierStylePara elsevierViewall">Finally&#44; in this study&#44; we observed an association between heel pain and an earlier onset of the skin an joint disease&#46; The literature includes descriptions in which patients with an early onset of PsA have an Achilles enthesitis&#44;<a class="elsevierStyleCrossRef" href="#bib0090"><span class="elsevierStyleSup">9</span></a> but there have been no reports of an association between age and cutaneous psoriasis&#46;</p><p id="par0125" class="elsevierStylePara elsevierViewall">The strengths of our study lie in the sample size and the fact that the series comes from an observational cohort in which the patients were assessed by a single rheumatologist&#46; Among the limitations&#44; we should mention that we are dealing with a cross-sectional retrospective study design&#46; That makes it impossible to confirm that heel pain is secondary to enthesitis&#46; On the other hand&#44; given that the cumulative prevalence of heel pain has been established&#44; we cannot rule out the existence of memory bias&#46;</p><p id="par0135" class="elsevierStylePara elsevierViewall">In conclusion&#44; in this study&#44; 35&#37; of the patients had clinically significant heel pain and its presence was associated with dactylitis&#44; with first-degree family members with a history of PsA and an earlier onset of psoriasis and PsA&#46;</p></span><span id="sec0045" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0105">Ethical Disclosures</span><span id="sec0050" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0110">Protection of human and animal subjects</span><p id="par0145" class="elsevierStylePara elsevierViewall">The authors declare that no experiments were performed on humans or animals for this study&#46;</p></span><span id="sec0055" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0115">Confidentiality of data</span><p id="par0150" class="elsevierStylePara elsevierViewall">The authors declare that they have followed the protocols of their work center on the publication of patient data&#46;</p></span><span id="sec0060" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0120">Right to privacy and informed consent</span><p id="par0155" class="elsevierStylePara elsevierViewall">The authors declare that no patient data appear in this article&#46;</p></span></span><span id="sec0065" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0125">Funding</span><p id="par0160" class="elsevierStylePara elsevierViewall">The design&#44; preparation and analysis of this study were financed with recourses of the Rheumatology Department of Teaching Hospital of Bellvitge&#46;</p></span><span id="sec0070" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0130">Conflicts of Interest</span><p id="par0165" class="elsevierStylePara elsevierViewall">Dr&#46; Jes&#250;s Rodriguez Moreno collaborated during this time with different pharmaceutical industries by means of presentations in congresses and the performance of other clinical trials&#46; The authors declare they have no conflicts of interest&#46;</p></span></span>"
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        1 => array:2 [
          "identificador" => "xpalclavsec1029541"
          "titulo" => "Keywords"
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        2 => array:3 [
          "identificador" => "xres1085067"
          "titulo" => "Resumen"
          "secciones" => array:4 [
            0 => array:2 [
              "identificador" => "abst0025"
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              "titulo" => "Resultados"
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              "titulo" => "Conclusiones"
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        3 => array:2 [
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          "titulo" => "Palabras clave"
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        4 => array:2 [
          "identificador" => "sec0005"
          "titulo" => "Introduction"
        ]
        5 => array:3 [
          "identificador" => "sec0010"
          "titulo" => "Materials and Methods"
          "secciones" => array:4 [
            0 => array:2 [
              "identificador" => "sec0015"
              "titulo" => "Study Design"
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            1 => array:2 [
              "identificador" => "sec0020"
              "titulo" => "Clinical Research Ethics Committee"
            ]
            2 => array:2 [
              "identificador" => "sec0025"
              "titulo" => "Characteristics of the Patients and the Study Variables"
            ]
            3 => array:2 [
              "identificador" => "sec0030"
              "titulo" => "Statistical Analysis"
            ]
          ]
        ]
        6 => array:2 [
          "identificador" => "sec0035"
          "titulo" => "Results"
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        7 => array:2 [
          "identificador" => "sec0040"
          "titulo" => "Discussion"
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        8 => array:3 [
          "identificador" => "sec0045"
          "titulo" => "Ethical Disclosures"
          "secciones" => array:3 [
            0 => array:2 [
              "identificador" => "sec0050"
              "titulo" => "Protection of human and animal subjects"
            ]
            1 => array:2 [
              "identificador" => "sec0055"
              "titulo" => "Confidentiality of data"
            ]
            2 => array:2 [
              "identificador" => "sec0060"
              "titulo" => "Right to privacy and informed consent"
            ]
          ]
        ]
        9 => array:2 [
          "identificador" => "sec0065"
          "titulo" => "Funding"
        ]
        10 => array:2 [
          "identificador" => "sec0070"
          "titulo" => "Conflicts of Interest"
        ]
        11 => array:1 [
          "titulo" => "References"
        ]
      ]
    ]
    "pdfFichero" => "main.pdf"
    "tienePdf" => true
    "fechaRecibido" => "2016-11-30"
    "fechaAceptado" => "2017-03-09"
    "PalabrasClave" => array:2 [
      "en" => array:1 [
        0 => array:4 [
          "clase" => "keyword"
          "titulo" => "Keywords"
          "identificador" => "xpalclavsec1029541"
          "palabras" => array:5 [
            0 => "Psoriatic arthritis"
            1 => "Psoriasis"
            2 => "Heel"
            3 => "Pain"
            4 => "Enthesopathy"
          ]
        ]
      ]
      "es" => array:1 [
        0 => array:4 [
          "clase" => "keyword"
          "titulo" => "Palabras clave"
          "identificador" => "xpalclavsec1029540"
          "palabras" => array:5 [
            0 => "Artritis psori&#225;sica"
            1 => "Psoriasis"
            2 => "Tal&#243;n"
            3 => "Dolor"
            4 => "Entesopat&#237;a"
          ]
        ]
      ]
    ]
    "tieneResumen" => true
    "resumen" => array:2 [
      "en" => array:3 [
        "titulo" => "Abstract"
        "resumen" => "<span id="abst0005" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0010">Objective</span><p id="spar0005" class="elsevierStyleSimplePara elsevierViewall">To determine the prevalence of heel pain in a series of patients with psoriatic arthritis &#40;PsA&#41;&#46;</p></span> <span id="abst0010" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0015">Material and methods</span><p id="spar0010" class="elsevierStyleSimplePara elsevierViewall">Cross-sectional&#44; observational and retrospective study of a series of 347 patients&#46; All patients fulfilled the CASPAR criteria for PsA and 291 had a clinically significant history of heel pain&#46; The statistical analysis was performed using chi-square test&#44; ANOVA and binary logistic regression&#46;</p></span> <span id="abst0015" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0020">Results</span><p id="spar0015" class="elsevierStyleSimplePara elsevierViewall">Thirty-five percent of the patients had clinically significant heel pain&#46; A significant association was established between an early onset of skin and joint involvement in the disease and the development of heel pain&#46; However&#44; no significant correlation was found between disease duration and the presence of heel pain&#46; History of dactylitis and PsA in first-degree family members was also statistically associated with this complication&#46;</p></span> <span id="abst0020" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0025">Conclusions</span><p id="spar0020" class="elsevierStyleSimplePara elsevierViewall">Clinically significant heel pain was recorded in one third of the patients in this series&#46; There was a statistically significant association with dactylitis&#44; PsA in first-degree family members and an earlier onset of joint and skin disease&#46;</p></span>"
        "secciones" => array:4 [
          0 => array:2 [
            "identificador" => "abst0005"
            "titulo" => "Objective"
          ]
          1 => array:2 [
            "identificador" => "abst0010"
            "titulo" => "Material and methods"
          ]
          2 => array:2 [
            "identificador" => "abst0015"
            "titulo" => "Results"
          ]
          3 => array:2 [
            "identificador" => "abst0020"
            "titulo" => "Conclusions"
          ]
        ]
      ]
      "es" => array:3 [
        "titulo" => "Resumen"
        "resumen" => "<span id="abst0025" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0035">Objetivo</span><p id="spar0025" class="elsevierStyleSimplePara elsevierViewall">Determinar la prevalencia de talalgia cl&#237;nicamente significativa en una serie de pacientes con artritis psori&#225;sica &#40;APs&#41; y analizar su asociaci&#243;n con otras variables de la enfermedad&#46;</p></span> <span id="abst0030" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0040">Material y m&#233;todos</span><p id="spar0030" class="elsevierStyleSimplePara elsevierViewall">Estudio transversal&#44; observacional&#44; retrospectivo&#46; De la cohorte de 347 pacientes afectos de APs&#44; todos cumpl&#237;an los criterios de clasificaci&#243;n CASPAR para APs&#44; se seleccionaron 291 en los que estaba recogido el antecedente de talalgia cl&#237;nicamente significativa&#46; Para el an&#225;lisis estad&#237;stico se ha utilizado la prueba de chi-cuadrado&#44; el ANOVA y la prueba de regresi&#243;n log&#237;stica binaria&#46;</p></span> <span id="abst0035" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0045">Resultados</span><p id="spar0035" class="elsevierStyleSimplePara elsevierViewall">El 35&#37; de los pacientes present&#243; talalgia cl&#237;nicamente significativa&#46; La talalgia se asoci&#243; significativamente con un inicio m&#225;s precoz de la enfermedad cut&#225;nea y articular&#44; pero no con la duraci&#243;n de la enfermedad&#46; Tambi&#233;n fue significativa su asociaci&#243;n con la dactilitis y antecedente familiar de primer grado con APs&#46;</p></span> <span id="abst0040" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle" id="sect0050">Conclusiones</span><p id="spar0040" class="elsevierStyleSimplePara elsevierViewall">La talalgia cl&#237;nicamente significativa se present&#243; en un tercio de los pacientes de la serie&#46; Se asoci&#243; con dactilitis&#44; antecedente familiar de primer grado con APs y un inicio m&#225;s precoz de la enfermedad cut&#225;nea y articular&#46;</p></span>"
        "secciones" => array:4 [
          0 => array:2 [
            "identificador" => "abst0025"
            "titulo" => "Objetivo"
          ]
          1 => array:2 [
            "identificador" => "abst0030"
            "titulo" => "Material y m&#233;todos"
          ]
          2 => array:2 [
            "identificador" => "abst0035"
            "titulo" => "Resultados"
          ]
          3 => array:2 [
            "identificador" => "abst0040"
            "titulo" => "Conclusiones"
          ]
        ]
      ]
    ]
    "NotaPie" => array:1 [
      0 => array:2 [
        "etiqueta" => "&#9734;"
        "nota" => "<p class="elsevierStyleNotepara" id="npar0025">Please cite this article as&#58; Morales Ivorra I&#44; Ju&#225;rez L&#243;pez P&#44; L&#243;pez de Recalde M&#44; Carvalho PD&#44; Rodriguez Moreno J&#46; La talalgia en la artropat&#237;a psori&#225;sica&#46; An&#225;lisis de una serie de 291 pacientes&#46; Reumatol Clin&#46; 2018&#59;14&#58;290&#8211;293&#46;</p>"
      ]
    ]
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        "identificador" => "tbl0005"
        "etiqueta" => "Table 1"
        "tipo" => "MULTIMEDIATABLA"
        "mostrarFloat" => true
        "mostrarDisplay" => false
        "detalles" => array:1 [
          0 => array:3 [
            "identificador" => "at1"
            "detalle" => "Table "
            "rol" => "short"
          ]
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        "tabla" => array:2 [
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            0 => array:2 [
              "tabla" => array:1 [
                0 => """
                  <table border="0" frame="\n
                  \t\t\t\t\tvoid\n
                  \t\t\t\t" class=""><thead title="thead"><tr title="table-row"><th class="td" title="table-head  " align="" valign="top" scope="col">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</th><th class="td" title="table-head  " align="left" valign="top" scope="col">Overall series<br><span class="elsevierStyleItalic">N</span><span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>291&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</th><th class="td" title="table-head  " colspan="3" align="center" valign="top" scope="col" style="border-bottom: 2px solid black">Univariate analysis</th><th class="td" title="table-head  " colspan="2" align="center" valign="top" scope="col" style="border-bottom: 2px solid black">Multivariate analysis</th></tr><tr title="table-row"><th class="td" title="table-head  " align="" valign="top" scope="col" style="border-bottom: 2px solid black">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</th><th class="td" title="table-head  " align="" valign="top" scope="col" style="border-bottom: 2px solid black">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</th><th class="td" title="table-head  " align="left" valign="top" scope="col" style="border-bottom: 2px solid black">Without heel pain<br><span class="elsevierStyleItalic">n</span>&#47;<span class="elsevierStyleItalic">N</span> &#40;&#37;&#41;&#44; <span class="elsevierStyleItalic">M</span><span class="elsevierStyleHsp" style=""></span>&#177;<span class="elsevierStyleHsp" style=""></span>SD<br><span class="elsevierStyleItalic">n</span><span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>189&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</th><th class="td" title="table-head  " align="left" valign="top" scope="col" style="border-bottom: 2px solid black">With heel pain<br><span class="elsevierStyleItalic">n</span>&#47;<span class="elsevierStyleItalic">N</span> &#40;&#37;&#41;&#44; <span class="elsevierStyleItalic">M</span><span class="elsevierStyleHsp" style=""></span>&#177;<span class="elsevierStyleHsp" style=""></span>SD<br><span class="elsevierStyleItalic">n</span><span class="elsevierStyleHsp" style=""></span>&#61;<span class="elsevierStyleHsp" style=""></span>102&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</th><th class="td" title="table-head  " align="left" valign="top" scope="col" style="border-bottom: 2px solid black"><span class="elsevierStyleItalic">P</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</th><th class="td" title="table-head  " align="left" valign="top" scope="col" style="border-bottom: 2px solid black">OR &#40;95&#37; CI&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</th><th class="td" title="table-head  " align="left" valign="top" scope="col" style="border-bottom: 2px solid black"><span class="elsevierStyleItalic">P</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</th></tr></thead><tbody title="tbody"><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top"><span class="elsevierStyleItalic">Men &#40;n</span><span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleItalic">&#61;</span><span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleItalic">291&#41;</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">157&#47;291 &#40;53&#46;9&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">54&#47;102 &#40;51&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">103&#47;189 &#40;54&#46;5&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">ns<a class="elsevierStyleCrossRef" href="#tblfn0005"><span class="elsevierStyleSup">a</span></a>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">ns<a class="elsevierStyleCrossRef" href="#tblfn0005"><span class="elsevierStyleSup">a</span></a>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top"><span class="elsevierStyleItalic">Dactylitis &#40;n</span><span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleItalic">&#61;</span><span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleItalic">289&#41;</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">132&#47;289 &#40;45&#46;7&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">76&#47;188 &#40;40&#46;4&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">56&#47;101 &#40;55&#46;4&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">&#46;015<a class="elsevierStyleCrossRef" href="#tblfn0005"><span class="elsevierStyleSup">a</span></a>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">0&#46;565 &#40;0&#46;335&#8211;0&#46;951&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">&#46;032<a class="elsevierStyleCrossRef" href="#tblfn0010"><span class="elsevierStyleSup">b</span></a>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top"><span class="elsevierStyleItalic">Age &#40;n</span><span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleItalic">&#61;</span><span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleItalic">291&#41;</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">57&#46;1<span class="elsevierStyleHsp" style=""></span>&#177;<span class="elsevierStyleHsp" style=""></span>13&#46;8&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">60&#46;1<span class="elsevierStyleHsp" style=""></span>&#177;<span class="elsevierStyleHsp" style=""></span>13&#46;7&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">&#46;000<a class="elsevierStyleCrossRef" href="#tblfn0015"><span class="elsevierStyleSup">c</span></a>&nbsp;\t\t\t\t\t\t\n
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                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top"><span class="elsevierStyleItalic">Age at onset of Ps &#40;n</span><span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleItalic">&#61;</span><span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleItalic">283&#41;</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">32&#46;7<span class="elsevierStyleHsp" style=""></span>&#177;<span class="elsevierStyleHsp" style=""></span>15&#46;2&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">34&#46;7<span class="elsevierStyleHsp" style=""></span>&#177;<span class="elsevierStyleHsp" style=""></span>15&#46;5&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">29&#46;1<span class="elsevierStyleHsp" style=""></span>&#177;<span class="elsevierStyleHsp" style=""></span>14&#46;0&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">&#46;003<a class="elsevierStyleCrossRef" href="#tblfn0015"><span class="elsevierStyleSup">c</span></a>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top"><span class="elsevierStyleItalic">Age at onset of PsA &#40;n</span><span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleItalic">&#61;</span><span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleItalic">288&#41;</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">40&#46;6<span class="elsevierStyleHsp" style=""></span>&#177;<span class="elsevierStyleHsp" style=""></span>14&#46;5&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">43&#46;0<span class="elsevierStyleHsp" style=""></span>&#177;<span class="elsevierStyleHsp" style=""></span>14&#46;6&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">36&#46;2<span class="elsevierStyleHsp" style=""></span>&#177;<span class="elsevierStyleHsp" style=""></span>13&#46;2&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">&#46;000<a class="elsevierStyleCrossRef" href="#tblfn0015"><span class="elsevierStyleSup">c</span></a>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top"><span class="elsevierStyleItalic">Duration PsA &#40;n</span><span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleItalic">&#61;</span><span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleItalic">288&#41;</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">16&#46;5<span class="elsevierStyleHsp" style=""></span>&#177;<span class="elsevierStyleHsp" style=""></span>11&#46;7&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">17&#46;0<span class="elsevierStyleHsp" style=""></span>&#177;<span class="elsevierStyleHsp" style=""></span>12&#46;2&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">15&#46;4<span class="elsevierStyleHsp" style=""></span>&#177;<span class="elsevierStyleHsp" style=""></span>10&#46;7&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">ns<a class="elsevierStyleCrossRef" href="#tblfn0015"><span class="elsevierStyleSup">c</span></a>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top"><span class="elsevierStyleItalic">BMI &#40;n</span><span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleItalic">&#61;</span><span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleItalic">266&#41;</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">27&#46;6<span class="elsevierStyleHsp" style=""></span>&#177;<span class="elsevierStyleHsp" style=""></span>4&#46;7&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">27&#46;9<span class="elsevierStyleHsp" style=""></span>&#177;<span class="elsevierStyleHsp" style=""></span>4&#46;7&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">27&#46;1<span class="elsevierStyleHsp" style=""></span>&#177;<span class="elsevierStyleHsp" style=""></span>4&#46;8&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">ns<a class="elsevierStyleCrossRef" href="#tblfn0015"><span class="elsevierStyleSup">c</span></a>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top"><span class="elsevierStyleItalic">First-degree family member with Ps &#40;n</span><span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleItalic">&#61;</span><span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleItalic">283&#41;</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">124&#47;283 &#40;44&#46;0&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">80&#47;184 &#40;43&#46;4&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">44&#47;99 &#40;44&#46;4&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">ns<a class="elsevierStyleCrossRef" href="#tblfn0005"><span class="elsevierStyleSup">a</span></a>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top"><span class="elsevierStyleItalic">First-degree family member with PsA &#40;n</span><span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleItalic">&#61;</span><span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleItalic">273&#41;</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">27&#47;273 &#40;9&#46;9&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">12&#47;176 &#40;6&#46;8&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">15&#47;97 &#40;15&#46;4&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">&#46;02<a class="elsevierStyleCrossRef" href="#tblfn0015"><span class="elsevierStyleSup">c</span></a>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="table-entry  " colspan="7" align="left" valign="top"><span class="elsevierStyleVsp" style="height:0.5px"></span></td></tr><tr title="table-row"><td class="td" title="table-entry  " colspan="7" align="left" valign="top"><span class="elsevierStyleItalic">Peripheral arthritis pattern &#40;n</span><span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleItalic">&#61;</span><span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleItalic">288&#41;</span></td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top"><span class="elsevierStyleHsp" style=""></span>Oligoarticular&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">141&#47;288 &#40;49&#46;0&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">85&#47;186 &#40;45&#46;7&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">56&#47;102 &#40;54&#46;9&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top"><span class="elsevierStyleHsp" style=""></span>Polyarticular&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">139&#47;288 &#40;48&#46;3&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">96&#47;186 &#40;51&#46;6&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">43&#47;102 &#40;42&#46;1&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top"><span class="elsevierStyleHsp" style=""></span>Axial&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">8&#47;288 &#40;2&#46;8&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">5&#47;186 &#40;2&#46;7&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">3&#47;102 &#40;3&#46;0&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="table-entry  " colspan="7" align="left" valign="top"><span class="elsevierStyleVsp" style="height:0.5px"></span></td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top"><span class="elsevierStyleItalic">Lumbar pain before the age of 45 years and during</span><span class="elsevierStyleHsp" style=""></span>&#62;<span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleItalic">3 months &#40;n</span><span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleItalic">&#61;</span><span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleItalic">222&#41;</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">75&#47;222 &#40;33&#46;8&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">48&#47;144 &#40;33&#46;3&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">27&#47;78 &#40;34&#46;6&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">ns<a class="elsevierStyleCrossRef" href="#tblfn0005"><span class="elsevierStyleSup">a</span></a>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top"><span class="elsevierStyleItalic">Axial SpA &#40;modified New York criteria&#41; &#40;n</span><span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleItalic">&#61;</span><span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleItalic">275&#41;</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">33&#47;275 &#40;12&#46;5&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">21&#47;182 &#40;11&#46;5&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">12&#47;93 &#40;13&#46;0&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">ns<a class="elsevierStyleCrossRef" href="#tblfn0005"><span class="elsevierStyleSup">a</span></a>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top"><span class="elsevierStyleItalic">Radiological sacroiliitis &#40;n</span><span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleItalic">&#61;</span><span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleItalic">211&#41;</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">48&#47;211 &#40;22&#46;7&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">31&#47;134 &#40;23&#46;1&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">17&#47;77 &#40;22&#46;1&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">ns<a class="elsevierStyleCrossRef" href="#tblfn0005"><span class="elsevierStyleSup">a</span></a>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top"><span class="elsevierStyleItalic">Distal interphalangeal involvement &#40;n</span><span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleItalic">&#61;</span><span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleItalic">288&#41;</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">96&#47;288 &#40;33&#46;3&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">66&#47;188 &#40;35&#46;1&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">30&#47;100 &#40;30&#46;0&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">ns<a class="elsevierStyleCrossRef" href="#tblfn0005"><span class="elsevierStyleSup">a</span></a>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top"><span class="elsevierStyleItalic">Resorptive&#47;arthritis mutilans &#40;n</span><span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleItalic">&#61;</span><span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleItalic">290&#41;</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">23&#47;290 &#40;8&#46;0&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">17&#47;189 &#40;9&#46;0&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">6&#47;101 &#40;5&#46;9&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">ns<a class="elsevierStyleCrossRef" href="#tblfn0005"><span class="elsevierStyleSup">a</span></a>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top"><span class="elsevierStyleItalic">Positive for HLA-B27 &#40;n</span><span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleItalic">&#61;</span><span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleItalic">264&#41;</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">34&#47;264 &#40;12&#46;9&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">21&#47;172 &#40;12&#46;2&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">13&#47;92 &#40;14&#46;1&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">ns<a class="elsevierStyleCrossRef" href="#tblfn0005"><span class="elsevierStyleSup">a</span></a>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top"><span class="elsevierStyleItalic">Onychopathy &#40;n</span><span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleItalic">&#61;</span><span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleItalic">282&#41;</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">174&#47;282 &#40;61&#46;7&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">109&#47;184 &#40;59&#46;2&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">65&#47;98 &#40;66&#46;3&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">ns<a class="elsevierStyleCrossRef" href="#tblfn0005"><span class="elsevierStyleSup">a</span></a>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top"><span class="elsevierStyleItalic">Palmoplantar Ps &#40;n</span><span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleItalic">&#61;</span><span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleItalic">280&#41;</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">56&#47;280 &#40;20&#46;0&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">39&#47;184 &#40;21&#46;1&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">17&#47;96 &#40;17&#46;7&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">ns<a class="elsevierStyleCrossRef" href="#tblfn0005"><span class="elsevierStyleSup">a</span></a>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top"><span class="elsevierStyleItalic">Moderate-to-severe Ps &#40;n</span><span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleItalic">&#61;</span><span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleItalic">283&#41;</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">95&#47;283 &#40;33&#46;6&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">62&#47;186 &#40;33&#46;3&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">33&#47;97 &#40;34&#46;0&#41;&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">ns<a class="elsevierStyleCrossRef" href="#tblfn0005"><span class="elsevierStyleSup">a</span></a>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="" valign="top">&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td></tr><tr title="table-row"><td class="td-with-role" title="table-entry ; entry_with_role_rowhead " align="left" valign="top"><span class="elsevierStyleItalic">Biological therapy &#40;n</span><span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleItalic">&#61;</span><span class="elsevierStyleHsp" style=""></span><span class="elsevierStyleItalic">267&#41;</span>&nbsp;\t\t\t\t\t\t\n
                  \t\t\t\t</td><td class="td" title="table-entry  " align="left" valign="top">112&#47;267 &#40;41&#46;9&#41;&nbsp;\t\t\t\t\t\t\n
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Article information

ISSN: 21735743
Original language: English

DOI:10.1016/j.reumae.2017.03.010

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2024 November	5	8	13
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2024 August	80	40	120
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2023 December	33	34	67
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2023 August	101	18	119
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2023 May	53	24	77
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2023 March	62	28	90
2023 February	49	23	72
2023 January	42	13	55
2022 December	85	27	112
2022 November	50	43	93
2022 October	96	47	143
2022 September	38	33	71
2022 August	37	35	72
2022 July	50	55	105
2022 June	39	30	69
2022 May	51	44	95
2022 April	35	58	93
2022 March	47	57	104
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2021 December	37	46	83
2021 November	46	44	90
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2021 September	56	47	103
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2021 July	43	29	72
2021 June	44	33	77
2021 May	69	48	117
2021 April	84	96	180
2021 March	62	39	101
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2020 December	56	31	87
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2020 October	31	19	50
2020 September	82	34	116
2020 August	33	26	59
2020 July	34	18	52
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2020 May	24	9	33
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