The effect of major depression on functional status in patients with coronary artery disease.
OBJECTIVE: To examine the effect of major depression on reported functional status in a group of patients with coronary artery disease (CAD). SETTING: An inpatient cardiology service. PARTICIPANTS: Three hundred thirty-five inpatients with coronary artery disease who were free of dementia, Parkinson's disease, and other primary neurological illnesses. MEASUREMENTS: Duke Depression Evaluation Schedule, a structured psychiatric interview which included the Diagnostic Interview Schedule depression subscale, the Cumulative Illness Rating Scale, and two scales for measuring instrumental and self-maintenance activities of daily living. RESULTS: Twenty-seven subjects met DSM-IV criteria for major depression. Compared with subjects without major depression, depressed subjects were more than twice as likely to report a self-maintenance ADL deficit and were significantly more likely to report an IADL deficit than were nondepressed subjects (93 vs 71%). In regression models, female gender, older age, greater medical illness severity, and presence of major depression were significant predictors of self-maintenance ADL disability; and female gender, older age, greater medical severity, and presence of major depression significantly predicted greater IADL impairment. CONCLUSION: The presence of major depression was associated with functional disability in patients with CAD. Further research is needed to clarify whether antidepressant treatment significantly impacts both affective symptoms and functional status in patients with coronary heart disease.
Steffens, DC; O'Connor, CM; Jiang, WJ; Pieper, CF; Kuchibhatla, MN; Arias, RM; Look, A; Davenport, C; Gonzalez, MB; Krishnan, KR
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