A prospective study of the impact of smoking on outcomes in bipolar and schizoaffective disorder

Abstract Background Tobacco smoking is more prevalent among people with mental illnesses, including bipolar disorder, than in the general community. Most data are cross-sectional, and there are no prospective trials examining the relationship of smoking to outcome in bipolar disorder. The impact of...

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Bibliographic Details
Published in:Comprehensive psychiatry 2010-09, Vol.51 (5), p.504-509
Main Authors: Dodd, Seetal, Brnabic, Alan J.M, Berk, Lesley, Fitzgerald, Paul B, de Castella, Anthony R, Filia, Sacha, Filia, Kate, Kelin, Katarina, Smith, Meg, Montgomery, William, Kulkarni, Jayashri, Berk, Michael
Format: Article
Language:English
Subjects:
Addictive behaviors
Adult
Adult and adolescent clinical studies
Age of Onset
Biological and medical sciences
Bipolar disorder
Bipolar Disorder - epidemiology
Bipolar Disorder - therapy
Bipolar disorders
Case-Control Studies
Comorbidity
Female
Humans
Least-Squares Analysis
Male
Medical sciences
Mental disorders
Mood disorders
Prevalence
Prospective Studies
Psychiatry
Psychology. Psychoanalysis. Psychiatry
Psychopathology. Psychiatry
Psychoses
Psychotic Disorders - epidemiology
Psychotic Disorders - therapy
Schizophrenia
Smoking - epidemiology
Studies
Tobacco smoking
Tobacco, tobacco smoking
Toxicology
Treatment Outcome
Victoria - epidemiology
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Summary:Abstract Background Tobacco smoking is more prevalent among people with mental illnesses, including bipolar disorder, than in the general community. Most data are cross-sectional, and there are no prospective trials examining the relationship of smoking to outcome in bipolar disorder. The impact of tobacco smoking on mental health outcomes was investigated in a 24-month, naturalistic, longitudinal study of 240 people with bipolar disorder or schizoaffective disorder. Method Participants were interviewed and data recorded by trained study clinicians at 9 interviews during the study period. Results Comparisons were made between participants who smoked daily (n = 122) and the remaining study participants (n = 117). During the 24-month study period, the daily smokers had poorer scores on the Clinical Global Impressions–Depression ( P = .034) and Clinical Global Impressions–Overall Bipolar ( P = .026) scales and had lengthier stays in hospital ( P = .012), compared with nonsmokers. Limitations Smoking status was determined by self-report. Nicotine dependence was not measured. Conclusion These findings suggest that smoking is associated with poorer mental health outcomes in bipolar and schizoaffective disorder.
ISSN:0010-440X
1532-8384
DOI:10.1016/j.comppsych.2009.12.001