Cranwell Jo, Murray Rachael, Lewis Sarah, Leonardi-Bee Jo, Dockrell Martin, Britton John
UK Centre for Tobacco and Alcohol Studies, Division of Epidemiology and Public Health, University of Nottingham, Clinical Sciences Building, City Hospital, Nottingham, UK.
Addiction. 2015 Apr;110(4):703-11. doi: 10.1111/add.12835. Epub 2015 Jan 28.
To quantify tobacco and alcohol content, including branding, in popular contemporary YouTube music videos; and measure adolescent exposure to such content.
Ten-second interval content analysis of alcohol, tobacco or electronic cigarette imagery in all UK Top 40 YouTube music videos during a 12-week period in 2013/14; on-line national survey of adolescent viewing of the 32 most popular high-content videos.
Great Britain.
A total of 2068 adolescents aged 11-18 years who completed an on-line survey.
Occurrence of alcohol, tobacco and electronic cigarette use, implied use, paraphernalia or branding in music videos and proportions and estimated numbers of adolescents who had watched sampled videos.
Alcohol imagery appeared in 45% [95% confidence interval (CI) = 33-51%] of all videos, tobacco in 22% (95% CI = 13-27%) and electronic cigarettes in 2% (95% CI = 0-4%). Alcohol branding appeared in 7% (95% CI = 2-11%) of videos, tobacco branding in 4% (95% CI = 0-7%) and electronic cigarettes in 1% (95% CI = 0-3%). The most frequently observed alcohol, tobacco and electronic cigarette brands were, respectively, Absolut Tune, Marlboro and E-Lites. At least one of the 32 most popular music videos containing alcohol or tobacco content had been seen by 81% (95% CI = 79%, 83%) of adolescents surveyed, and of these 87% (95% CI = 85%, 89%) had re-watched at least one video. The average number of videos seen was 7.1 (95% CI = 6.8, 7.4). Girls were more likely to watch and also re-watch the videos than boys, P < 0.001.
Popular YouTube music videos watched by a large number of British adolescents, particularly girls, include significant tobacco and alcohol content, including branding.
量化当下流行的YouTube音乐视频中的烟草和酒精含量，包括品牌；并衡量青少年接触此类内容的情况。
对2013/14年为期12周的所有英国热门40首YouTube音乐视频进行十秒间隔的酒精、烟草或电子烟图像内容分析；对青少年观看32个最热门高含量视频进行全国在线调查。
英国。
共有2068名11至18岁的青少年完成了在线调查。
音乐视频中酒精、烟草和电子烟使用、暗示使用、相关器具或品牌的出现情况，以及观看抽样视频的青少年比例和估计人数。
45%[95%置信区间（CI）=33 - 51%]的视频中出现酒精图像，22%（95%CI = 13 - 27%）出现烟草图像，2%（95%CI = 0 - 4%）出现电子烟图像。7%（95%CI = 2 - 11%）的视频中出现酒精品牌，4%（95%CI = 0 - 7%）出现烟草品牌，1%（95%CI = 0 - 3%）出现电子烟品牌。最常出现的酒精、烟草和电子烟品牌分别是绝对伏特加（Absolut Tune）、万宝路（Marlboro）和E - Lites。在接受调查的青少年中，81%（95%CI = 79%，83%）看过至少32个包含酒精或烟草内容的最热门音乐视频中的一个，其中87%（95%CI = 85%，89%）至少重看过一个视频。观看视频的平均数量为7.1（95%CI = 6.8，7.4）。女孩比男孩更有可能观看并再次观看这些视频，P < 0.001。
大量英国青少年，尤其是女孩观看的热门YouTube音乐视频包含大量烟草和酒精内容，包括品牌。
