Background
The present study investigated the relationship between daily cigarette smoking and risk of onset and persistence of major depressive disorder (MDD) over a 10-year period among adults in the United States and whether successful smoking cessation reduced the risk for MDD.
Method
Data were drawn from the Midlife Development in the United States Survey (MIDUS; n = 2101) Waves I and II. Logistic regressions were used to investigate the relations between smoking and the onset and persistence of MDD, adjusting for demographic characteristics and substance use problems.
Results
Daily smoking in 1994 [OR = 1.9 (1.2–3.2)] and persistent daily smoking (in 1994 and 2005) [OR = 2.2 (1.3–3.7)] were both associated with a significantly increased likelihood of MDD in 2005. Additionally, abstinence, compared to daily smoking, for more than 10 years significantly reduced the risk of MDD in 2005 [OR = 0.5 (0.3–0.87)] and persistent MDD in 1994 and 2005; [OR = 0.5 (0.3–0.87)].
Conclusions
Findings from this study provide new insights into the role of smoking in the onset and persistence of MDD. Namely, among those in mid-adulthood, smoking is associated with greater MDD risk and quitting may help to reduce such risk. These results suggest that there may be merit in targeting smoking to reduce the risk of MDD and the mental health benefits of quitting smoking in the form of reduced risk of MDD could usefully be added to common information listed as reasons to quit.
This study investigated the relation between major depressive disorder (MDD) and smoking relapse in the U.S. over a 10-year period. Data were drawn from the Midlife Development in the United States (MIDUS) Survey Waves I & II. Logistic regression analyses were used to explore the associations between past-year MDD in 1994, past-year MDD in 2005 and persistent depression (1994 and 2005) and risk of smoking relapse in 2005 among former smokers, adjusting for demographics, anxiety disorders, and substance use problems and smoking characteristics. Among former smokers, MDD in 1994, compared to without MDD in 1994, was associated with significantly increased odds of smoking relapse by 2005. Current MDD in 2005 was associated with an even stronger risk of relapse in 2005 and persistent depression even more strongly predicted relapse by 2005. These associations remained significant and were not substantially attenuated by the covariates. In conclusion, MDD appears to confer long-term vulnerability to smoking relapse among adults in the general population. These results suggest interventions for smoking cessation should include screening and treatment for MDD if programs are to be optimally effective at achieving initial quit success as well as enduring abstinence.
These findings suggest the utility of assessing and targeting anxiety sensitivity in the treatment of acculturative stress-related depression/anxiety problems among Hispanic college students. (PsycINFO Database Record
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