MMWR Morb Mortal Wkly Rep. 2011 Jul 15;60(27):910-3.
The National Cancer Institute has concluded that studies indicate a causal relationship between exposure to depictions of smoking in movies and youth smoking initiation. Adolescents in the top quartile of exposures to onscreen tobacco incidents have been found to be approximately twice as likely to begin smoking as those in the bottom quartile. The 2010 U.S. Department of Health and Human Services strategic plan to reduce tobacco use includes reducing youth exposure to onscreen smoking. To monitor tobacco use in movies, Thumbs Up! Thumbs Down! (TUTD), a project of Breathe California of Sacramento-Emigrant Trails, counts occurrences of tobacco incidents in U.S. top-grossing movies each year. This report updates a previous report with the latest TUTD findings. In 2010, the number of onscreen tobacco incidents in youth-rated (G, PG, or PG-13) movies continued a downward trend, decreasing 71.6% from 2,093 incidents in 2005 to 595 in 2010. Similarly, the average number of incidents per youth-rated movie decreased 66.2%, from 20.1 in 2005 to 6.8 in 2010. The degree of decline, however, varied substantially by motion picture company. The three companies with published policies designed to reduce tobacco use in their movies had an average decrease in tobacco incidents of 95.8%, compared with an average decrease of 41.7% among the three major motion picture companies and independents without policies. This finding indicates that an enforceable policy aimed at reducing tobacco use in youth-rated movies can lead to substantially fewer tobacco incidents in movies and help prevent adolescent initiation of smoking.
美国国家癌症研究所得出结论,研究表明,电影中吸烟场景的描绘与青少年吸烟起始之间存在因果关系。研究发现,暴露于电影中烟草镜头最多的青少年开始吸烟的可能性约为暴露于最低四分位数的青少年的两倍。2010 年美国卫生与公众服务部减少烟草使用的战略计划包括减少青少年接触电影中的吸烟镜头。为了监测电影中的烟草使用情况,萨克拉门托-埃米特特拉尔的加利福尼亚呼吸项目“竖起大拇指!向下指!”(TUTD)每年都会统计美国票房最高的电影中出现的烟草事件数量。本报告更新了之前的报告,介绍了 TUTD 的最新发现。2010 年,青少年(G、PG 或 PG-13)电影中的吸烟镜头数量继续呈下降趋势,从 2005 年的 2093 次下降到 2010 年的 595 次,下降了 71.6%。同样,青少年电影中平均吸烟事件数量也下降了 66.2%,从 2005 年的 20.1 次下降到 2010 年的 6.8 次。然而,下降幅度因电影公司而异。三家公布了旨在减少电影中烟草使用政策的公司,其烟草事件的平均降幅为 95.8%,而三家主要电影公司和没有政策的独立电影公司的平均降幅为 41.7%。这一发现表明,针对青少年电影中烟草使用的可执行政策可以显著减少电影中的烟草镜头,有助于防止青少年开始吸烟。