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Published online July 20, 2009
PEDIATRICS Vol. 124 No. 2 August 2009, pp. e180-e186 (doi:10.1542/peds.2008-3838)
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ARTICLE

Exposure to Tobacco on the Internet: Content Analysis of Adolescents' Internet Use

Brian P. Jenssen, BAa,b, Jonathan D. Klein, MD, MPHa,b, Laura F. Salazar, PhDc, Nichole A. Daluga, MPHc, Ralph J. DiClemente, PhDc

a Julius B. Richmond Center of Excellence, American Academy of Pediatrics, Elk Grove Village, Illinois
b Department of Pediatrics, School of Medicine and Dentistry, University of Rochester, Rochester, New York
c Department of Behavioral Science and Health Education, Rollins School of Public Health, Emory University, Atlanta, Georgia

OBJECTIVE: We performed a content analysis of all Web pages viewed by a random sample of adolescents to describe exposure to tobacco- and smoking-related text and images.

METHODS: Adolescents (14–17 years of age) with home Internet access were recruited. Internet-tracking software was installed on home computers used by 346 eligible consenting participants. All Web pages viewed by adolescent participants were captured during a 30-day period for each subject. Keywords on smoking and tobacco were used to identify tobacco images or text.

RESULTS: The 346 participants viewed 1.2 million Web pages, of which 8702 (0.72%) contained tobacco or smoking content. Exposure to tobacco content did not vary according to smoking status. Content was protobacco on 1916 pages, antitobacco on 1572, and complex or unclear on 5055. Social networking sites, mainly MySpace, represented 53% of pages (n = 4612) on which tobacco content was found. All pages with smoking content contained references in text, and 256 (3%) contained images. Many (43%) of the adolescents were exposed to protobacco imagery (median: 3 pages per month). Cigarettes were mentioned on 20% of pages. Tobacco products were sold on 50 pages, and 242 pages contained links to tobacco products sold on other pages. On social networking sites, 4121 pages included a mention of smoking status in the authors' individual profiles, with 23% of authors identifying themselves as smokers.

CONCLUSIONS: Many adolescents are consistently exposed to tobacco content on the Internet, but the volume of exposure is limited and not all content represents protobacco content.

Key Words: Internet • tobacco advertising • tobacco control policy • social networking

Abbreviations: T3—Tracking Teen Trends

Accepted Mar 24, 2009.


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