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The aim of the present study was to analyze the score of fatigue in a large cohort of Brazilian patients with SpA, comparing different disease patterns and its association with demographic and disease-specific variables.A common protocol of investigation was prospectively applied to 1492 Brazilian patients classified as SpA according to the European Spondyloarthropathies Study Group (ESSG) criteria, attended at 29 reference centers. Clinical and demographic variables were recorded. Fatigue was evaluated using the first item of the Bath Ankylosing Spondylitis Disease Activity Index (BASDAI) questionnaire.The mean BASDAI fatigue score was 4.20 ± 2.99. There was no significant difference in the fatigue score between the different SpA. Fatigue was higher in female patients (p0.001), with mixed (axial + peripheral) involvement (p0.001) and in those who did not practice exercises (p0.001). Higher scores of fatigue were significantly associated with inflammatory low back pain (p = 0.013), alternating buttock pain (p = 0.001), cervical pain (p = 0.001), and hip involvement (p = 0.005). Fatigue presented a moderate positive statistical correlation with Bath Ankylosing Spondylitis Functional Index (BASFI) (0.469; p0.001) and Ankylosing Spondylitis Quality of Life (0.462; p0.001).In this large series of Brazilian SpA patients, higher fatigue scores were associated with female gender, sedentary, worse functionality, and quality of life.

Objective.To analyze the clinical effect of enthesitis in a large Brazilian cohort of patients with spondyloarthritis (SpA).Methods.A common protocol of investigation was prospectively applied to 1505 patients with SpA in 29 centers in Brazil. Clinical and demographic variables and disease indexes were investigated. The Maastricht Ankylosing Spondylitis Enthesitis Score was used to investigate the enthesitis component. Ankylosing spondylitis was the most frequent disease in the group (65.4%). Others were psoriatic arthritis (18.4%), undifferentiated SpA (6.7%), reactive arthritis (3.3%), and enteropathic arthritis (3.2%).Results.At least 1 affected enthesis was observed in 54% of the patients with SpA, with a mean of 2.12 ± 2.98 entheses affected. According to the clinical presentation, enthesitis was significantly more frequent in patients with axial + peripheral joint involvement compared to isolated axial or peripheral involvement (p < 0.001). There was a statistical association between the presence of enthesites and axial symptoms (buttock pain, cervical pain, and hip pain), and peripheral symptoms (lower limb arthritis, number of painful and swollen joints; p < 0.05). Patients with enthesitis also presented higher mean scores of Bath Ankylosing Spondylitis Functional Index (BASFI; p < 0.001), Bath Ankylosing Spondylitis Disease Activity Index (p < 0.001), and Ankylosing Spondylitis Quality of Life (ASQoL; p < 0.001). Multivariate logistic regression showed that BASFI (p < 0.0001; OR 74.839), ASQoL (p = 0.0001; OR 14.645), and Achilles tendonitis (p = 0.0059; OR 7.593) were associated with work incapacity.Conclusion.The clinical presence of enthesitis in this large cohort of patients with SpA was frequent and was associated with a significant increase in disease activity and decline in functional capacity and quality of life.

Objective.Spondyloarthritides (SpA) can present different disease spectra according to ethnic background. The Brazilian Registry of Spondyloarthritis (RBE) is a nationwide registry that comprises a large databank on clinical, functional, and treatment data on Brazilian patients with SpA. The aim of our study was to analyze the influence of ethnic background in SpA disease patterns in a large series of Brazilian patients.Methods.A common protocol of investigation was prospectively applied to 1318 SpA patients in 29 centers distributed through the main geographical regions in Brazil. The group comprised whites (65%), African Brazilians (31.3%), and people of mixed origins (3.7%). Clinical and demographic variables and various disease index scores were compiled. Ankylosing spondylitis (AS) was the most frequent disease in the group (65.1%); others were psoriatic arthritis (18.3%), undifferentiated SpA (6.8%), enteropathic arthritis (3.7%), and reactive arthritis (3.4%).Results.White patients were significantly associated with psoriasis (p = 0.002), positive HLA-B27 (p = 0.014), and use of corticosteroids (p < 0.0001). Hip involvement (p = 0.02), axial inflammatory pain (p = 0.04), and radiographic sacroiliitis (p = 0.025) were associated with African Brazilian descent. Sex distribution, family history, and presence of peripheral arthritis, uveitis, dactylitis, urethritis, and inflammatory bowel disease were similar in the 3 groups, as well as age at disease onset, time from first symptom until diagnosis, and use of anti-tumor necrosis factor-α agents (p > 0.05). Schober test and thoracic expansion were similar in the 3 groups, whereas African Brazilians had higher Maastricht Ankylosing Spondylitis Enthesitis Scores (p = 0.005) and decreased lateral lumbar flexion (p = 0.003), while whites had a higher occiput-to-wall distance (p = 0.02). African Brazilians reported a worse patient global assessment of disease (p = 0.011). Other index scores and prevalence of work incapacity were similar in the 3 groups, although African Brazilians had worse performance in the Ankylosing Spondylitis Quality of Life questionnaire (p < 0.001).Conclusion.Ethnic background is associated with distinct clinical aspects of SpA in Brazilian patients. African Brazilian patients with SpA have a poorer quality of life and report worse disease compared to whites.

Gustavo G. Resende a,*, Cristina C. D. Lannaa, Adriana B. Bortoluzzob, Celio R. Goncalvesc, Percival D. Sampaio -Barrosc, Jose Antonio Braga da Silvad, Antonio Carlos Ximenese, Manoel B. Bertolo f, Sandra L.E. Ribeiro g, Mauro Keisermanh, Rita Menini, Thelma L. Skare j, Sueli Carneirok, Valderilio F. Azevedol, Walber P. Vieiram, Elisa N. Albuquerquen, Washington A. Bianchio, Rubens Bonfiglioli p, Cristiano Campanholoq, Hellen M. S. Carvalhor, Izaias P. Costas, Angela P. Duartet, Charles L. Kohemu, Nocy Leitev, Sonia A. L. Limaw, Eduardo S. Meirelles x, Ivânio A. Pereiray, Marcelo M. Pinheiro z, Elizandra Polito A, Francisco Airton C. RochaB, Mittermayer B. SantiagoC, Maria de Fatima L. C. SaumaD, Valeria ValimE

Objective: To analyze quality of life and demographic and clinical variables associated to its impairment in a large Brazilian cohort of patients with spondyloarthritis (SpA). Methods: A common protocol of investigation was applied to 1465 Brazilian patients classified as SpA according to the European Spondyloarthropaties Study Group (ESSG) criteria, attended at 29 reference centers for Rheumatology in Brazil. Clinical and demographic variables were recorded. Quality of life was analyzed through the Ankylosing Spondylitis Quality of Life (ASQoL) questionnaire. Results: The mean ASQoL score was 7.74 (+/- 5.39). When analyzing the specific diseases in the SpA group, the ASQoL scores did not present statistical significance. Demographic data showed worse scores of ASQoL associated with female gender (p = 0.014) and African Brazilian ethnicity (p

Universidade Estadual de Campinas Faculdade de Ciencias Medicas Departamento de Clinica Medica

DESCRICAO DO METODO DE COLETA DE EVIDENCIAS: Reuniao consensual para elaboracao do texto com inclusao das citacoes bibliograficas, numa colaboracao de reumatologistas com as especialidades de reumatologia pediatrica, dermatologia, gastroenterologia e oftalmologia. Foram convidados 12 reumatologistas responsaveis pelo ambulatorio de espondiloartropatias em suas instituicoes (ou seus representantes); cada participante foi convidado a fazer uma analise critica, utilizando o conceito da medicina baseada em evidencias, de um aspecto diferente dentro do espectro do tratamento das espondiloartropatias. Foi convidado um especialista de cada area para fazer a mesma analise critica nos topicos espondiloartropatias juvenis (reumatologista pediatrico), psoriase (dermatologista), doencas inflamatorias intestinais (gastroenterologista) e uveite anterior (oftalmologista). Apos a elaboracao de um texto-base de apoio para as discussoes, todos os especialistas se reuniram, no periodo entre 22 e 24 de abril de 2004, a fim de discutir individualmente cada um dos 16 topicos elaborados e estabelecer um consenso baseado em evidencias, a partir do qual os coordenadores redigiram o texto do consenso, submetido a apreciacao de todos os participantes para a realizacao dos ajustes finais. GRAU DE RECOMENDACAO E FORCA DE EVIDENCIA: A: Estudos experimentais e observacionais de melhor consistencia. B: Estudos experimentais e observacionais de menor consistencia. C: Relatos de casos, estudos nao controlados. D: Opiniao desprovida de avaliacao critica, baseada em consensos, estudos fisiologicos ou modelos animais. OBJETIVOS: Oferecer informacoes sobre a otimizacao do tratamento das diferentes espondiloartropatias. CONFLITO DE INTERESSE: Os autores Sampaio-Barros PD, Carneiro SCS, Hilario MOE, Xavier RM e Ximenes AC declararam vinculo com a Industria Farmaceutica.

DESCRIÇÃO DO MÉTODO DE COLETA DE EVIDÊNCIAS: Reunião consensual para elaboração do texto com inclusão das citações bibliográficas, numa colaboração de reumatologistas com as especialidades de reumatologia pediátrica, dermatologia, gastroenterologia e oftalmologia. Foram convidados 12 reumatologistas responsáveis pelo ambulatório de espondiloartropatias em suas instituições (ou seus representantes); cada participante foi convidado a fazer uma análise crítica, utilizando o conceito da medicina baseada em evidências, de um aspecto diferente dentro do espectro do tratamento das espondiloartropatias. Foi convidado um especialista de cada área para fazer a mesma análise crítica nos tópicos espondiloartropatias juvenis (reuma-tologista pediátrico), psoríase (dermatologista), doenças inflamatórias intestinais (gastroenterologista) e uveíte anterior (oftalmologista). Após a elaboração de um texto-base de apoio para as discussões, todos os especialistas se reuniram, no período entre 22 e 24 de abril de 2004, a fim de discutir individualmente cada um dos 16 tópicos elaborados e estabelecer um consenso baseado em evidências, a partir do qual os coordenadores redigiram o texto do consenso, submetido à apreciação de todos os participantes para a realização dos ajustes finais. GRAU DE RECOMENDAÇÃO E FORÇA DE EVIDÊNCIA A: Estudos experimentais e observacionais de melhor consistência B: Estudos experimentais e observacionais de menor consistência C: Relatos de casos, estudos não controlados D: Opinião desprovida de avaliação crítica, baseada em consensos, estudos fisiológicos ou modelos animais. OBJETIVOS: Oferecer informações sobre a otimização do tratamento das diferentes espondiloartropatias. CONFLITO DE INTERESSE: Os autores Sampaio-Barros PD, Carneiro SCS, Hilário MOE, Xavier RM e Ximenes AC declararam vínculo com a Indústria Farmacêutica.

Objetivo Analisar as características clínicas e epidemiológicas das espondiloartrites (EpA) de início juvenil (< 16 anos) e compará-las com um grupo de pacientes com EspA de início na vida adulta (≥ 16 anos). Pacientes e métodos Coorte prospectiva, observacional e multicêntrica com 1.424 pacientes com diagnóstico de EspA de acordo com o European Spondyloarthropathy Study Group (ESSG) submetidos a um protocolo comum de investigação e recrutados em 29 centros de referência participantes do Registro Brasileiro de Espondiloartrites (RBE). Os pacientes foram divididos em dois grupos: idade no início

As doenças inflamatórias intestinais (doença de Crohn e retocolite ulcerativa) apresentam manifestações extraintestinais em um quarto dos pacientes, sendo a mais comum a artrite enteropática. MÉTODOS: Estudo prospectivo, observacional e multicêntrico, realizado com pacientes de 29 centros de referência participantes do Registro Brasileiro de Espondiloartrites (RBE), que se incorpora ao grupo RESPONDIA (Registro Ibero-americano de Espondiloartrites). Dados demográficos e clínicos de 1472 pacientes foram colhidos, e aplicaram-se questionários padronizados de avaliação de mobilidade axial, de qualidade de vida, de envolvimento entesítico, de atividade de doença e de capacidade funcional. Exames laboratoriais e radiográficos foram realizados. Objetivamos, neste presente artigo, comparar as características clínicas, epidemiológicas, genéticas, imagenológicas, de tratamento e prognóstico de enteroartríticos com os outros espondiloartríticos nesta grande coorte brasileira. RESULTADOS: Foram classificados como enteroartrite 3,2% dos pacientes, sendo que 2,5% tinham espondilite e 0,7%, artrite (predomínio periférico). O subgrupo de indivíduos com enteroartrite apresentava maior prevalência de mulheres (P < 0,001), menor incidência de dor axial inflamatória (P < 0,001) e de entesite (P = 0,004). O HLA-B27 foi menos frequente no grupo de enteroartríticos (P = 0,001), mesmo se considerado apenas aqueles com a forma axial pura. Houve menor prevalência de sacroiliíte radiológica (P = 0,009) e também menor escore radiográfico (BASRI) (P = 0,006) quando comparado aos pacientes com as demais espondiloartrites. Também fizeram mais uso de corticosteroides (P < 0,001) e sulfassalasina (P < 0,001) e menor uso de anti-inflamatórios não hormonais (P < 0,001) e metotrexato (P = 0,001). CONCLUSÃO: Foram encontradas diferenças entre as enteroartrites e as demais espondiloartrites, principalmente maior prevalência do sexo feminino, menor frequência do HLA-B27, associados a uma menor gravidade do acometimento axial. Inflammatory bowel diseases (Crohn’s disease and ulcerative rectocolitis) have extraintestinal manifestations 25% of the patients, with the most common one being the enteropathic arthritis. Methods: Prospective, observational, multicenter study with patients from 29 reference centers participating in the Brazilian Registry of Spondyloarthritis (RBE), which incorporates the RESPONDIA (Ibero-American Registry of Spondyloarthritis) group. Demographic and clinical data were collected from 1472 patients and standardized questionnaires for the assessment of axial mobility, quality of life, enthesitic involvement, disease activity and functional capacity were applied. Laboratory and radiographic examinations were performed. The aim of this study is to compare the clinical, epidemiological, genetic, imaging, treatment and prognosis characteristics of patients with enteropathic arthritis with other types of spondyloarthritis in a large Brazilian cohort. Results: A total of 3.2% of patients were classified as having enteroarthritis, 2.5% had spondylitis and 0.7%, arthritis (peripheral predominance). The subgroup of individuals with enteroarthritis had a higher prevalence in women (P < 0.001), lower incidence of inflammatory axial pain (P < 0.001) and enthesitis (P = 0.004). HLA-B27 was less frequent in the group with enteroarthritis (P = 0.001), even when considering only those with the pure axial form. There was a lower prevalence of radiographic sacroiliitis (P = 0.009) and lower radiographic score (BASRI) (P = 0.006) when compared to patients with other types of spondyloarthritis. They also used more corticosteroids (P < 0.001) and sulfasalazine (P < 0.001) and less nonsteroidal anti-inflammatory drugs (P < 0.001) and methotrexate (P = 0.001). Conclusion: There were differences between patients with enteroarthritis and other types of spondyloarthritis, especially higher prevalence of females, lower frequency of HLA-B27, associated with less severe axial involvement.

To analyze the results of the application of the Bath Ankylosing Spondylitis Disease Activity Index (BASDAI) in a large series of Brazilian patients with the diagnosis of SpA and establish its correlations with specific variables into the group.A common protocol of investigation was prospectively applied to 1492 Brazilian patients classified as SpA according to the European Spondyoarthropathies Study Group (ESSG), attended at 29 referral centers of Rheumatology in Brazil. Clinical and demographic variables, and disease indices (BASDAI, Basfi, Basri, Mases, ASQol) were applicated. The total values of BASDAI were compared to the presence of the different variables.The mean score of BASDAI was 4.20 ± 2.38. The mean scores of BASDAI were higher in patients with the combined (axial + peripheral + entheseal) (4.54 ± 2.38) clinical presentation, compared to the pure axial (3.78 ± 2.27) or pure peripheral (4.00 ± 2.38) clinical presentations (p0.001). BASDAI also presented higher scores associated with the female gender (p0.001) and patients who did not practice exercises (p0.001). Regarding the axial component, higher values of BASDAI were significantly associated with inflammatory low back pain (p0.049), alternating buttock pain (p0.001), cervical pain (p0.001) and hip involvement (p0.001). There was also statistical association between BASDAI scores and the peripheral involvement, related to the lower (p=0.004) and upper limbs (p=0.025). The presence of enthesitis was also associated to higher scores of BASDAI (p=0.040). Positive HLA-B27 and the presence of cutaneous psoriasis, inflammatory bowel disease, uveitis and urethritis were not correlated with the mean scores of BASDAI. Lower scores of BASDAI were associated with the use of biologic agents (p0.001).In this heterogeneous Brazilian series of SpA patients, BASDAI was able to demonstrate "disease activity" in patients with axial as well as peripheral disease.

IntroductionFew studies have evaluated the profile of use of disease modifying drugs (DMD) in Brazilian patients with spondyloarthritis (SpA).MethodsA common research protocol was applied prospectively in 1505 patients classified as SpA by criteria of the European Spondyloarthropathies Study Group (ESSG), followed at 29 referral centers in Rheumatology in Brazil. Demographic and clinical variables were obtained and evaluated, by analyzing their correlation with the use of DMDs methotrexate (MTX) and sulfasalazine (SSZ).ResultsAt least one DMD was used by 73.6% of patients: MTX by 29.2% and SSZ by 21.7%, while 22.7% used both drugs. The use of MTX was significantly associated with peripheral involvement, and SSZ was associated with axial involvement, and the two drugs were more administered, separately or in combination, in the mixed involvement (p < 0.001). The use of a DMD was significantly associated with Caucasian ethnicity (MTX, p = 0.014), inflammatory back pain (SSZ, p = 0.002), buttock pain (SSZ, p = 0.030), neck pain (MTX, p = 0.042), arthritis of the lower limbs (MTX, p < 0.001), arthritis of the upper limbs (MTX, p < 0.001), enthesitis (p = 0.007), dactylitis (MTX, p < 0.001), inflammatory bowel disease (SSZ, p < 0.001) and nail involvement (MTX, p < 0.001).ConclusionThe use of at least one DMD was reported by more than 70% of patients in a large cohort of Brazilian patients with SpA, with MTX use more associated with peripheral involvement and the use of SSZ more associated with axial involvement.

OBJETIVO: Descrever as manifestações extra-articulares (cardíacas, renais, pulmonares e neurológicas) geralmente não relacionadas às espondiloartrites (EpA) em uma grande coorte de pacientes brasileiros. MÉTODOS: Este estudo retrospectivo analisou 1.472 pacientes com o diagnóstico de EpA atendidos em 29 centros distribuídos pelas cinco principais regiões geográficas do Brasil, integrantes do Registro Brasileiro de Espondiloartrites. Todos os pacientes foram avaliados para a prevalência das principais manifestações extra-articulares (cardíacas, renais, pulmonares e neurológicas), divididas por diagnóstico [espondilite anquilosante (EA), artrite psoriásica (AP), artrite reativa (ARe), artrite associada a doença inflamatória intestinal (DII), EpA indiferenciada (EI) e EpA juvenil] e por forma clínica (axial, periférica, mista e entesítica). RESULTADOS: Dentre os pacientes avaliados com EpA, 963 apresentavam EA, 271 AP, 49 ARe, 48 artrite associada a DII, 98 EI e 43 EpA juvenil. Acometimento cardíaco foi observado em 44 pacientes (3,0%), seguido por acometimento pulmonar em 19 (1,3%), renal em 17 (1,2%) e neurológico em 13 pacientes (0,9%). A maioria dos casos de acometimento visceral ocorreu nos pacientes com EA ou AP e naqueles com forma clínica mista (axial e periférica) e/ou predominantemente axial. CONCLUSÃO: As manifestações extra-articulares cardíacas, renais, pulmonares e neurológicas são muito pouco frequentes nas EpA, variando de 0,9%-3% nesta grande coorte brasileira, estando mais associadas a EA e AP. OBJECTIVE: To describe the extra-articular manifestations (cardiac, renal, pulmonary, and neurological), usually not related to spondyloarthritis (SpA), in a large cohort of Brazilian patients. MATERIALS AND METHODS: This retrospective study analyzed 1,472 patients diagnosed with SpA and cared for at 29 health care centers distributed in the five major geographic regions in the country, participating in the Brazilian Registry of Spondyloarthritis (BRS). All patients were assessed for the prevalence of major extra-articular manifestations (cardiac, renal, pulmonary, and neurological), classified according to the diagnosis [ankylosing spondylitis (AS), psoriatic arthritis (PsA), reactive arthritis (ReA), arthritis associated with inflammatory bowel disease (IBD), undifferentiated spondyloarthritis (uSpA), and juvenile SpA], and according to the clinical presentation (axial, peripheral, mixed, and enthesitis). RESULTS: Of the patients with SpA assessed, 963 had AS, 271 PsA, 49 ReA, 48 arthritis associated with IBD, 98 uSpA, and 43 juvenile SpA. Cardiac involvement was reported in 44 patients (3.0%), pulmonary involvement in 19 (1.3%), renal involvement in 17 (1.2%), and neurological involvement in 13 patients (0.9%). Most patients with visceral involvement had AS or PsA, and the mixed (axial + peripheral) and/or predominantly axial clinical form. CONCLUSION: Cardiac, renal, pulmonary, and neurological extra-articular manifestations are quite infrequent in SpA, ranging from 0.9% to 3% in this large Brazilian cohort, and affected predominantly patients with AS and PsA. Universidade de Fortaleza Hospital Geral de Fortaleza Hospital Geral de Fortaleza Serviço de Reumatologia Instituto de Ensino e Pesquisa FMUSP Hospital das Clínicas Universidade de Brasília Hospital Geral de Goiânia Universidade Estadual de Campinas Universidade Federal do Amazonas Pontifícia Universidade Católica de Porto Alegre Faculdade de Medicina de São José do Rio Preto Hospital Evangélico de Curitiba Universidade Federal do Rio de Janeiro Universidade Federal do Paraná Universidade do Estado do Rio de Janeiro Santa Casa da Misericórdia do Rio de Janeiro Pontifícia Universidade Católica de Campinas Santa Casa de Misericórdia de São Paulo Hospital de Base de Brasília Universidade Federal do Mato Grosso do Sul Universidade Federal de Pernambuco Universidade Federal do Rio Grande do Sul Fundação Técnico-Educacional Souza Marques Hospital do Servidor Público Estadual de São Paulo FMUSP Universidade Federal de Santa Catarina Universidade Federal de São Paulo (UNIFESP) Santa Casa de Misericórdia de Belo Horizonte Universidade Federal de Minas Gerais Universidade Federal do Ceará Escola de Saúde Pública da Bahia Universidade Federal do Pará Universidade Federal do Espírito Santo UNIFESP, EPM, São Paulo SciELO

Universidade Estadual de Campinas Faculdade de Ciências Médicas Departamento de Clínica Médica Sociedade Brasileira de Reumatologia Universidade Federal do Paraná Pontifícia Universidade Católica de Campinas Universidade Federal de Minas Gerais Universidade Estadual do Rio de Janeiro Faculdade de Ciências Médicas Universidade Federal do Rio de Janeiro Programa de Pós-Graduação em Medicina Universidade Federal de Minas Gerais Departamento do Aparelho Locomotor Universidade de São Paulo Faculdade de Medicina Unidade de Espondiloartropatias Universidade Federal de São Paulo (UNIFESP) Setor de Reumatologia Pediátrica Pontifícia Universidade Católica do Rio Grande do Sul Faculdade de Medicina Faculdade de Medicina Souza Marques Fundação Faculdade Federal de Ciências Médicas de Porto Alegre FMUSP Instituto de Ortopedia e Traumatologia Hospital Geral de Fortaleza Hospital Geral de Goiânia Departamento de Medicina Interna FMUSP UNIFESP, Setor de Reumatologia Pediátrica SciELO

Background The spondyloarthritides (SpA) represent a group of chronic diseases that affect around 1% of the population. Enthesitis is a frequent clinical complaint in SpA patients that need to be better investigated Objectives To analyze the impact of the entheseal inflammatory involvement in a large Brazilian cohort of SpA patients. Methods A common protocol of investigation was prospectively applied to 1505 SpA patients in 29 centers distributed through the main geographical regions in Brazil. Clinical and demographic variables and disease indexes (BASDAI, BASFI, BASRI, ASQoL) were investigated. MASES (Maastricht Ankylosing Spondylitis Enthesitis Score) was used to investigate the entheseal component. Ankylosing spondylitis (AS) was the most frequent disease (65.4%) that also included psoriatic arthritis (18.4%), undifferentiated SpA (6.7%), reactive arthritis (3.3%), and enteropathic arthritis (3.2%). Results Enthesitis was referred by 54% of the SpA patients, with a mean of 2.12±2.98 enthesis affected. It was present in 53.3% of the AS patients, 54.4% in psoriatic arthritis, and 70.4% in undifferentiated SpA. Enthesitis was significantly more frequent in patients with axial + peripheral joint involvement compared to isolated involvement (p Conclusions The presence of enthesitis in SpA patients was frequent and caused a significant negative impact in the quality of life, associated to a more extensive joint involvement and functional incapacity. References Doward LC et al. Development of the ASQoL: a quality of life instrument specific to ankylosing spondylitis. Ann Rheum Dis 2003;62:20-6 Jones SD et al A new scoring system for the Bath Ankylosing Spondylitis Metrology Index (BASMI). J Rheumatol 1995;22:1609 Malorie P et al. A new approach to defining functional ability in ankylosing spondylitis: the development of the Bath Ankylosing Functional Index. J Rheumatol 1994;21: 2281-5 Sampaio-Barros PD et al. Primary ankylosing spondylitis: patterns of disease in a Brazilian population of 147 patients. J Rheumatol 2001;28:560-5. Disclosure of Interest None Declared