Epidemiology Department, Boston University School of Public Health, Boston, Massachusetts.
Department of Health Law, Policy & Management, Boston University School of Public Health, Boston, Massachusetts.
J Stud Alcohol Drugs. 2020 Jan;81(1):34-38. doi: 10.15288/jsad.2020.81.34.
Do youth switch channels during alcohol advertisements at different rates than adults? This question has implications for the alcohol industry's self-regulation of its advertising placements. People may avoid television advertisements by switching channels, which can be measured by comparing two television audience metrics: commercial ratings (which measure the audience during the advertisement) and program ratings (which measure the audience during the television program). We assessed changes in youth and adult audiences during alcohol advertisements with implications for alcohol industry self-regulatory compliance.
A census of alcohol advertisements for 2010-2014 was licensed from Nielsen (New York, NY). We compared noncompliant advertisements (with youth making up >28.4% of the audience) and the percentage decline in per capita advertising exposure for youth and adult age groups using both commercial and program ratings.
The audience during the alcohol advertisement declined by 8.48% among underage viewers ages 12-17 years and by 7.04% for viewers ages 18-20 years, compared with 8.20% for adults ages 21-24, 10.43% for ages 25-34, and 9.74% for ages 35 and older. These declines exceeded the margin of error (±2.6%), indicating a decline in viewership across all age groups, but we could not draw conclusions about differences between age groups. Compared with audience estimates using commercial ratings, program ratings underestimated the number of noncompliant advertisements by 8,800, leading to an underestimate of noncompliant exposure by 140 million impressions.
Both underage viewers and young adults switched channels during alcohol advertisements. Using commercial ratings rather than program ratings may more accurately measure compliance with alcohol industry advertising guidelines.
年轻人在观看酒类广告时换台的速度是否比成年人快?这个问题对酒类行业自我监管其广告投放位置有影响。人们可能会通过换台来避免收看电视广告,这可以通过比较两个电视观众指标来衡量:广告收视率(测量广告期间的观众数量)和节目收视率(测量电视节目期间的观众数量)。我们评估了酒类广告对年轻人和成年人观众的影响,这对酒类行业的自我监管合规性有影响。
我们从尼尔森(纽约,纽约)获得了 2010-2014 年酒类广告的普查数据。我们比较了不符合规定的广告(观众中年轻人比例超过 28.4%)和青少年组和成年组的人均广告暴露量下降的百分比,使用广告收视率和节目收视率。
与 21-24 岁的成年人相比,12-17 岁的未成年人和 18-20 岁的年轻人在酒类广告期间的观众人数下降了 8.48%和 7.04%,而 25-34 岁的观众下降了 8.20%,35 岁及以上的观众下降了 9.74%。这些下降幅度超过了误差幅度(±2.6%),表明所有年龄段的观众观看人数都有所下降,但我们无法得出关于不同年龄组之间差异的结论。与使用广告收视率估计的观众人数相比,节目收视率低估了 8800 个不符合规定的广告,导致非合规曝光量估计减少了 1.4 亿次。
未成年人和年轻成年人在观看酒类广告时都换台了。使用广告收视率而不是节目收视率可能更准确地衡量酒类行业广告准则的遵守情况。