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Bipolar Disord. 2014 Dec;16(8):846-56. doi: 10.1111/bdi.12232. Epub 2014 Jul 16.

Impulsivity predicts time to reach euthymia in adults with bipolar disorder.

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1
Department of Psychology, University of Cincinnati, Cincinnati, OH, USA.

Abstract

OBJECTIVES:

Specific demographic and illness characteristics have been identified as predictors of overall morbidity and treatment course among individuals with bipolar disorder. However, the role of specific cognitive limitations on disease severity and treatment response is unclear. The present study evaluated whether impulsiveness during acute mania was a significant predictor of achieving euthymia within one year following psychiatric hospitalization.

METHODS:

Participants were 94 adult inpatients (60 manic) with bipolar I disorder. Baseline symptom severity was assessed using the Young Mania Rating Scale and the Montgomery-Åsberg Depression Rating Scale. Impulsivity was measured with the Stop Signal Task, Degraded Stimulus Continuous Performance Task, Delayed Response Task, and Barratt Impulsiveness Scale-11.

RESULTS:

Individual predictors of time to reach euthymia included fewer depressive symptoms and better impulse control at baseline, later age at illness onset, shorter illness duration, and the absence of comorbid attention-deficit hyperactivity disorder. Self-reported impulsivity was a significant independent predictor of time to euthymia, even after accounting for relevant clinical variables.

CONCLUSIONS:

Better trait impulse control may be associated with better treatment responsiveness among adults with bipolar disorder.

KEYWORDS:

bipolar disorder; impulsivity; mania; survival analysis; treatment response

PMID:
25039396
DOI:
10.1111/bdi.12232
[Indexed for MEDLINE]
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