RT Journal Article SR Electronic T1 Psychological Correlates of Self-reported Disease Activity in Ankylosing Spondylitis JF The Journal of Rheumatology JO J Rheumatol FD The Journal of Rheumatology SP 829 OP 834 DO 10.3899/jrheum.090476 VO 37 IS 4 A1 TAMAR F. BRIONEZ A1 SHERVIN ASSASSI A1 JOHN D. REVEILLE A1 CHARLES GREEN A1 THOMAS LEARCH A1 LAURA DIEKMAN A1 MICHAEL M. WARD A1 JOHN C. DAVIS, Jr A1 MICHAEL H. WEISMAN A1 PERRY NICASSIO YR 2010 UL http://www.jrheum.org/content/37/4/829.abstract AB Objective. To investigate the role of psychological variables in self-reported disease activity in patients with ankylosing spondylitis (AS), while controlling for demographic and medical variables. Methods. Patients with AS (n = 294) meeting modified New York criteria completed psychological measures evaluating depression, resilience, active and passive coping, internality, and helplessness. Demographic, clinical, and radiologic data were also collected. Univariate and multivariate analyses were completed to determine the strength of the correlation of psychological variables with disease activity, as measured by the Bath AS Disease Activity Index (BASDAI). Results. In the multivariate regression analysis, the psychological variables contributed significantly to the variance in BASDAI scores, adding an additional 33% to the overall R-square beyond that accounted for by demographic and medical variables (combined R-square 18%). Specifically, arthritis helplessness and depression accounted for the most significant portion of the variance in BASDAI scores in the final model. Conclusion. Arthritis helplessness and depression accounted for significant variability in self-reported disease activity beyond clinical and demographic variables in patients with AS. These findings have important clinical implications in the treatment and monitoring of disease activity in AS, and suggest potential avenues of intervention.