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Work disability in patients with ankylosing spondylitis
Journal of Rheumatology, 10/19/09

Ariza-Ariza R et al. – The prevalence of permanent work disability in Spanish patients with AS is significant, and the main factors related to it are age, disease duration, structural damage, and physical functioning. Longitudinal studies are needed to confirm these results.

• Cross-sectional study
• AS patients classified as work-disabled according to Spanish Social Security System criteria
• Variables that discriminated between AS patients with and those without work disability identified using chi-square test or unpaired t test when appropriate
• Multiple logistic regression performed

• Total 699 were analyzed
Age 48.7 ± SD 12.7 y and with disease duration 14.1 ± 10.1 years
• 179 patients (25.6%) had permanent work disability
• Several variables significantly different values in patients with compared to those without work disability
• In regression model , age , sex , disease duration , total Bath AS Radiological Index , Bath AS Functional Index (BASFI) , and chest expansion retained independent association with work disability
• With BASFI excluded from model independent association with sex did not remain
• Significant association with finger to floor distance found

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