Department of Community Health Sciences, School of Public Health, Boston University, Boston, MA, USA.
Am J Public Health. 2011 Oct;101(10):1936-41. doi: 10.2105/AJPH.2011.300159. Epub 2011 Aug 18.
We investigated the frequency of alcohol ads at all 113 subway and streetcar stations in Boston and the patterns of community exposure stratified by race, socioeconomic status, and age.
We assessed the extent of alcohol advertising at each station in May 2009. We measured gross impressions and gross rating points (GRPs) for the entire Greater Boston population and for Boston public school student commuters. We compared the frequency of alcohol advertising between neighborhoods with differing demographics.
For the Greater Boston population, alcohol advertising at subway stations generated 109 GRPs on a typical day. For Boston public school students in grades 5 to 12, alcohol advertising at stations generated 134 GRPs. Advertising at stations in low-poverty neighborhoods generated 14.1 GRPs and at stations in high-poverty areas, 63.6 GRPs.
Alcohol ads reach the equivalent of every adult in the Greater Boston region and the equivalent of every 5th- to 12th-grade public school student each day. More alcohol ads were displayed in stations in neighborhoods with high poverty rates than in stations in neighborhoods with low poverty rates.
我们调查了波士顿所有 113 个地铁站和有轨电车站的酒类广告出现频率，并按种族、社会经济地位和年龄对社区暴露模式进行了分层研究。
我们于 2009 年 5 月评估了每个车站的酒类广告投放程度。我们测量了整个大波士顿地区和波士顿公立学校通勤学生的总印象和总收视率点数（GRPs）。我们比较了不同人口统计学特征的社区之间酒类广告的出现频率。
对于大波士顿地区的居民，地铁站的酒类广告每天可产生 109 个 GRPs。对于 5 至 12 年级的波士顿公立学校学生，车站的酒类广告可产生 134 个 GRPs。在贫困程度较低的社区的车站投放的广告产生了 14.1 个 GRPs，而在贫困程度较高的地区的车站则产生了 63.6 个 GRPs。
酒类广告的触达率相当于大波士顿地区的每个成年人，以及每天每 5 至 12 年级的公立学校学生中的每 5 人。在贫困率较高的社区的车站投放的酒类广告比在贫困率较低的社区的车站多。
