Spectrum of ankylosing spondylitis in Portugal. Development of BASDAI, BASFI, BASMI and mSASSS reference centile charts

Fernando M. Pimentel-Santos, Ana Filipa Mourão, Célia Ribeiro, José Costa, Helena Santos, Anabela Barcelos, Patricia Pinto, Fátima Godinho, Margarida Cruz, Elsa Vieira-Sousa, Rui André Santos, Sara Rabiais, Jorge Félix, João Eurico Fonseca, Henrique Guedes-Pinto, Matthew A. Brown, Jaime C. Branco, A. F. Mourão, A. A. De Matos, C. RibeiroF. M. Pimentel-Santos, J. Bravo Pimentão, M. Mateus, P. Nero, P. Araújo, S. Falcão, T. L. Pinto, W. Castelão, E. Vieira De Sousa, J. Caetano-Lopes, J. E. Fonseca, C. Silva, E. Simões, H. Madeira, H. Santos, J. Vaz Patto, J. Ferreira, M. Micaelo, M. J. Mediavilla, M. Sousa, P. Soares Branco, F. Godinho, J. Canas Da Silva, S. Garcês, V. Tavares, A. Ribeiro, D. Araújo, J. A. Costa, L. Costa, M. C. Afonso, M. Bogas, S. Alcino, P. Pinto, A. R. Cravo, G. Sequeira, R. A. Santos, A. Barcelos, I. Cunha, M. Cruz

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)

Abstract

The availability of population-specific normative data regarding disease severity measures is essential for patient assessment. The goals of the current study were to characterize the pattern of ankylosing spondylitis (AS) in Portuguese patients and to develop reference centile charts for BASDAI, BASFI, BASMI and mSASSS, the most widely used assessment tools in AS. AS cases were recruited from hospital outpatient clinics, with AS defined according to the modified New York criteria. Demographic and clinical data were recorded. All radiographs were evaluated by two independent experienced readers. Centile charts for BASDAI, BASFI, BASMI and mSASSS were constructed for both genders, using generalized linear models and regression models with duration of disease as independent variable. A total of 369 patients (62.3% male, mean ± (SD) age 45.4 ± 13.2 years, mean ± (SD) disease duration 11.4 ± 10.5 years, 70.7% B27-positive) were included. Family history of AS in a first-degree relative was reported in 17.6% of the cases. Regarding clinical disease pattern, at the time of assessment 42.3% had axial disease, 2.4% peripheral disease, 40.9% mixed disease and 7.1% isolated enthesopatic disease. Anterior uveitis (33.6%) was the most common extra-articular manifestation. The centile charts suggest that females reported greater disease activity and more functional impairment than males but had lower BASMI and mSASSS scores. Data collected through this study provided a demographic and clinical profile of patients with AS in Portugal. The development of centile charts constitutes a useful tool to assess the change of disease pattern over time and in response to therapeutic interventions.

Original languageEnglish
Pages (from-to)447-454
Number of pages8
JournalClinical Rheumatology
Volume31
Issue number3
DOIs
Publication statusPublished - 1 Mar 2012
Externally publishedYes

Keywords

  • Ankylosing spondylitis
  • Charts
  • Epidemiology

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