Smoking in Movies and Increased Smoking Among Young Adults
Refers to erratum:
Erratum
American Journal of Preventive Medicine
January 2008 (Vol. 34, Issue 1, Page 86) Full Text |
Full-Text PDF (51 KB)
Objective
This study assessed whether smoking in the movies was associated with smoking in young adults.
Methods
A national web-enabled cross-sectional survey of 1528 young adults, aged 18–25, was performed between September and November 2005. Logistic regression and path analysis using probit regression were used to assess relationships between exposure to smoking in the movies and smoking behavior. Analysis was completed in December 2006.
Results
Exposure to smoking in the movies predicted current smoking. The adjusted odds of current smoking increased by a factor of 1.21 for each quartile increase in exposure to smoking (p<0.01) in the movies, reaching 1.77 for the top exposure quartile. The unadjusted odds of established smoking (100+ cigarettes with current smoking) increased by 1.23 per quartile (p<0.001) of exposure, reaching 1.86 for the top quartile. This effect on established smoking was mediated by two factors related to smoking in the movies: positive expectations about smoking and exposure to friends and relatives who smoked, with positive expectations accounting for about two thirds of the effect.
Conclusions
The association between smoking in the movies and young adult smoking behavior exhibited a dose–response relationship; the more a young adult was exposed to smoking in the movies, the more likely he or she would have smoked in the past 30 days or have become an established smoker.
aCenter for Tobacco Research Control and Education, University of California, San Francisco, San Francisco, California
bDivision of General Internal Medicine, University of California, San Francisco, San Francisco, California
cCenter for AIDS Prevention Studies, University of California, San Francisco, San Francisco, California
dInstitute for Health Policy Studies, University of California, San Francisco, San Francisco, California
eDepartment of Medicine, University of California, San Francisco, San Francisco, California
Address correspondence and reprint requests to: Stanton Glantz, PhD, Center for Tobacco Control Research and Education, 530 Parnassus Avenue, Suite 366, San Francisco CA 94143-1390.
ABSTRACT