Article

Patients' ankylosing spondylitis perceptions shaped by helplessness, depression

ome psychological factors-helplessness and depression-account for significant variability in perceived disease activity in patients with ankylosing spondylitis (AS).

Some psychological factors-helplessness and depression-account for significant variability in perceived disease activity in patients with ankylosing spondylitis (AS). Because medical variables-such as C-reactive protein (CRP) level and radiographic severity-are not associated with patient-reported disease activity, interpretation of AS disease status may need to occur in the context of evaluating psychological status.

Brionez and colleagues conducted a cross-sectional study of patients with AS from the Prospective Study of Outcomes in Ankylosing Spondylitis. Measurement of disease activity was achieved with the Bath AS Disease Activity Index (BASDAI), a self-report 6-item questionnaire. Medical variables included CRP level, number of patient-reported comorbidities, and disease duration. Six psychological variables were measured.

Psychological variables contributed significantly to variance in BASDAI scores, adding 33% to the overall R-square beyond that accounted for by demographic and medical variables. Arthritis helplessness and depression accounted for the most significant portion of variance in BASDAI scores; other psychological factors-internality and passive, active, and resilience coping-did not account for significant variance.

The authors noted that their findings have important clinical implications and suggest potential avenues of intervention.

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