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Association of established smoking among adolescents with timing of exposure to smoking depicted in movies

Primack, BA and Longacre, MR and Beach, ML and Adachi-Mejia, AM and Titus, LJ and Dalton, MA (2012) Association of established smoking among adolescents with timing of exposure to smoking depicted in movies. Journal of the National Cancer Institute, 104 (7). 549 - 555. ISSN 0027-8874

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Background It is not known whether exposure to smoking depicted in movies carries greater influence during early or late adolescence. We aimed to quantify the independent relative contribution to established smoking of exposure to smoking depicted in movies during both early and late adolescence. Methods We prospectively assessed 2049 nonsmoking students recruited from 14 randomly selected public schools in New Hampshire and Vermont. At baseline enrollment, students aged 10-14 years completed a written survey to determine personal, family, and sociodemographic characteristics and exposure to depictions of smoking in the movies (early exposure). Seven years later, we conducted follow-up telephone interviews to ascertain follow-up exposure to movie smoking (late exposure) and smoking behavior. We used multiple regression models to assess associations between early and late exposure and development of established smoking. Results One-sixth (17.3%) of the sample progressed to established smoking. In analyses that controlled for covariates and included early and late exposure in the same model, we found that students in the highest quartile for early exposure had 73% greater risk of established smoking than those in the lowest quartile for early exposure (27.8% vs 8.6%; relative risk for Q4 vs Q1 = 1.73, 95% confidence interval = 1.14 to 2.62). However, late exposure to depictions of smoking in movies was not statistically significantly associated with established smoking (22.1% vs 14.0%; relative risk for Q4 vs Q1 = 1.13, 95% confidence interval = 0.89 to 1.44). Whereas 31.6% of established smoking was attributable to early exposure, only an additional 5.3% was attributable to late exposure. Conclusion s Early exposure to smoking depicted in movies is associated with established smoking among adolescents. Educational and policy-related interventions should focus on minimizing early exposure to smoking depicted in movies. © 2012 The Author.


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Item Type: Article
Status: Published
CreatorsEmailPitt UsernameORCID
Primack, BAbprimack@pitt.eduBPRIMACK
Longacre, MR
Beach, ML
Adachi-Mejia, AM
Titus, LJ
Dalton, MA
Centers: Other Centers, Institutes, Offices, or Units > Center for Research on Media, Technology, and Health
Date: 4 April 2012
Date Type: Publication
Journal or Publication Title: Journal of the National Cancer Institute
Volume: 104
Number: 7
Page Range: 549 - 555
DOI or Unique Handle: 10.1093/jnci/djs138
Schools and Programs: School of Medicine > Medicine
School of Medicine > Pediatrics
Refereed: Yes
ISSN: 0027-8874
Article Type: Review
MeSH Headings: Adolescent; Adolescent Behavior--psychology; Age Factors; Child; Female; Follow-Up Studies; Humans; Imitative Behavior; Longitudinal Studies; Male; Motion Pictures as Topic; Multivariate Analysis; New Hampshire--epidemiology; Poisson Distribution; Questionnaires; Schools; Smoking--epidemiology; Smoking--psychology; Time Factors; Vermont--epidemiology; Young Adult
Other ID: NLM PMC3317882
PubMed Central ID: PMC3317882
PubMed ID: 22423010
Date Deposited: 28 Jul 2014 16:48
Last Modified: 12 Oct 2017 08:56


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