Bipolar Disorder in a Population of Adolescents with Alcohol Use Disorders

Abstract

ABSTRACT Objectives: The objective of this paper is to present the prevalence of Bipolar Disorder (BPD) in a population of adolescents and young adults with alcohol use disorders (AUD) and to compare salient alcohol use, mood, and diagnostic variables between adolescents with BPD, those with Major Depressive Disorder (MDD), and those with AUD without a mood disorder. Methods: The subjects were 452 adolescents and young adults, age 12.9 to 28.3 years, who met DSM-IV criteria for a lifetime history of either alcohol abuse or alcohol dependence. DSM-IV psychiatric and AUD diagnoses were obtained by semi-structure interviews (K-SADS and SCID) to discern the possible effect of comorbid BPD on alcohol and other drug variables, we compared adolescents or young adults who met DSM-IV criteria for concurrent BPD and AUD with adolescents with MDD plus AUD and those with AUD and no mood disorder. Following one-way ANOVA comparing across the 3 groups, we proceeded with post hoc analysis comparing the BPD+AUD group with either the MDD + AUD or AUD only group. Results: 6.4% of the subjects met criteria for BPD. While there were no differences between groups on the alcohol consumption variables, subjects with BPD had a significantly earlier onset of an AUD diagnosis than either the MDD group or the AUD only group. The BPD + AUD group had a significantly greater percentage of subjects meeting criteria for alcohol dependence than the AUD only group. Conclusions: Comorbid mood disorders, particularly Bipolar Disorder, may have an important effect on alcohol and substance use variables and diagnosis. More research is needed to determine the effect of treatments for mood disorder on both mood and substance use variables.