Impulsivity in Euthymic Patients With Major Depressive Disorder: The Relation to Sociodemographic and Clinical Properties

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The purpose of this study was to examine the trait impulsivity of patients with a major depressive disorder and to explore the possible connections between impulsivity and clinical and sociodemographic variables. The sociodemographic and clinical properties of 60 patients with major depression, who were euthymic according to Hamilton Depression Scale scores, were recorded. Their trait impulsivity was evaluated using the Barratt Impulsiveness Scale (BIS-11) and the impulsivity subscale of the Temperament and Character Inventory, and the results were compared with those of 50 age- and sex-matched healthy controls. We used general linear model analysis to evaluate the manner in which the variables contributed to BIS-11 scores. Some impulsivity scores were higher in those with a major depressive disorder than in comparison subjects. There were significant effects of education and sex in these differences. Elevated BIS-11 scores were associated with a history of psychotic mood episode and suicide attempts. These relationships persisted when age, sex, and education were taken into account. These results show that, after accounting for common confounding factors, trait-like impulsivity was substantially higher in subjects with major depressive disorder than in comparison subjects and may be associated with sociodemographic and clinical properties.

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