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. 2010 Apr;12(4):355-64.
doi: 10.1093/ntr/ntq006. Epub 2010 Feb 15.

The role of comorbidity in explaining the associations between anxiety disorders and smoking

Jesse R Cougle  1 , Michael J Zvolensky, Kristin E Fitch, Natalie Sachs-Ericsson
Affiliations

The role of comorbidity in explaining the associations between anxiety disorders and smoking

Jesse R Cougle et al. Nicotine Tob Res. 2010 Apr.

Abstract

Introduction: Research has generally found strong associations between smoking and anxiety disorders. The present study sought to examine the role of comorbidity in explaining these relationships.

Methods: Participants from the National Comorbidity Survey-Replication (N = 5,692) were included in the present study. Axis I disorders were assessed using the World Mental Health Survey Initiative version of the World Health Organization Composite International Diagnostic Interview. In addition, smoking and mental health treatment history were assessed.

Results: Multivariate analyses covarying for demographic variables and psychiatric and substance use comorbidity found that posttraumatic stress disorder was uniquely associated with every smoking outcome of interest, including 12-month and lifetime daily and heavy smoking, nicotine dependence, and cessation failure. Generalized anxiety disorder and social anxiety disorder were associated with fewer smoking-related outcomes, and contrary to predictions, panic disorder was only independently associated with 12-month daily smoking. Panic attack history, however, was uniquely associated with 12-month daily and heavy smoking, nicotine dependence, and lifetime cessation failure. In addition, analyses indicated that greater number of anxiety disorders was associated with greater prevalence of each smoking outcome, and the presence of even one anxiety disorder was associated with elevated smoking prevalence.

Discussion: Several specific anxiety disorders were found to be uniquely associated with smoking behavior. Findings suggest that comorbidity may only explain the associations with smoking difficulties for some anxiety disorders.

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