Obesity as a Correlate of Outcome in Patients With Bipolar I Disorder

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Abstract
OBJECTIVE: This study sought to evaluate the relationship of obesity to demographic and clinical characteristics and treatment outcome in a group of 175 patients with bipolar I disorder who were treated for an acute affective episode and followed through a period of maintenance treatment. METHOD: Data were from participants entering the Maintenance Therapies for Bipolar Disorder protocol between 1991 and 2000. Analyses focused on differences in baseline demographic and clinical characteristics and in treatment outcomes between obese and nonobese patients. RESULTS: A total of 35.4% of the patients met criteria for obesity. Significant differences between the obese and nonobese patients were observed for years of education, numbers of previous depressive and manic episodes, baseline scores on the Hamilton Rating Scale for Depression, and durations of the acute episode. A Kaplan-Meier survival analysis indicated a significantly shorter time to recurrence during the maintenance phase among obese patients. The...