Exposure to Smoking Imagery in the Movies and Experimenting with Cigarettes among Mexican Heritage Youth
Exposure to Smoking Imagery in the Movies and Experimenting with Cigarettes among Mexican Heritage Youth
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DOI：
10.1158/1055-9965.epi-09-0766
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发表时间：
2009-12-01
影响因子：
3.8
通讯作者：
Sargent, James D.
中科院分区：
文献类型：
--
作者：
Wilkinson, Anna V.;Spitz, Margaret R.;Sargent, James D.
越来越多的证据表明，青少年尝试吸烟的决定受到吸烟电影的影响。关于种族如何影响这一过程，人们知之甚少。我们研究了文化适应和/或出生国是否会影响墨西哥裔青年在电影中接触吸烟图像和尝试吸烟之间的关系。我们前瞻性地随访了1,328名墨西哥裔青少年，年龄在11至13岁之间。我们评估了青少年看过的50部电影（从1999年至2004年发行的250部流行当代电影中随机选择，并对吸烟内容进行分析）。在基线和24个月内每隔6个月评估一次吸烟行为。10%的青少年在基线时进行过实验; 17%的人随后尝试过。多变量分析显示，随着电影中吸烟图像的曝光增加，曾经尝试过的机会[校正比值比（AOR）= 1.27; 95%置信区间（CI），1.10 - 1.48]和成为新实验者的机会（AOR = 1.19; 95%CI，1.01 - 1.40）增加，相当于电影曝光每增加一个四分位数，曾经尝试的风险增加4.2%，新尝试的风险增加3.0%。这种影响受到出生国的影响。对于墨西哥出生的年轻人来说，接触电影中的吸烟图像是新实验的最强独立预测因子（AOR = 1.52; 95%CI，1.14 - 2.05）。对于美国-在年轻时，我们观察到了天花板效应：实验者的百分比随着暴露的增加而增加，然后变平。在墨西哥出生的青年中，接触电影中的吸烟图像可能是与吸烟开始相关的文化适应过程的重要组成部分。（Cancer Epidemiol Biomarkers Prev 2009; 18（12）：3435 - 43）
There is growing evidence that an adolescent's decision to try cigarettes is influenced by level of exposure to movies in which smoking is portrayed. Less is known about how ethnicity affects this process. We examined whether acculturation and/or country of birth influence the relationship between exposure to smoking imagery in the movies and experimenting with cigarettes among Mexican origin youth. We prospectively followed 1,328 Mexican origin adolescents ages 11 to 13 years at baseline. We assessed which of 50 movies (randomly selected from a pool of 250 popular contemporary movies released from 1999 to 2004 and content analyzed for smoking) adolescents had seen. Smoking behavior was assessed at baseline and at 6-month intervals over 24 months. Ten percent of the adolescents had experimented at baseline; 17% tried subsequently. Multivariate analyses revealed, as exposure to smoking imagery in the movies increased, the chances of having ever experimented [adjusted odds ratio (AOR) = 1.27; 95% confidence interval (CI), 1.10-1.48] and of being a new experimenter (AOR = 1.19; 95% CI, 1.01-1.40) increased, equivalent to a 4.2% increased risk of ever and a 3.0% increased risk of new experimenting for each additional quartile of movie exposure. This effect was moderated by country of birth. For Mexican-born youth, exposure to smoking imagery in the movies was the strongest independent predictor of new experimentation (AOR = 1.52; 95% CI, 1.14-2.05). For U.S.-born youth, we observed a ceiling effect: the percent of experimenters increased with increasing exposure, and then flattened. Among Mexican-born youth, exposure to smoking imagery in the movies may be an important part of the acculturation process associated with smoking initiation. (Cancer Epidemiol Biomarkers Prev 2009;18(12):3435-43)