Powell Lisa M, Szczypka Glen, Chaloupka Frank J
Institute for Health Research and Policy, University of Illinois at Chicago, 1747 W Roosevelt Ave., Chicago, IL 60608, USA.
Arch Pediatr Adolesc Med. 2010 Sep;164(9):794-802. doi: 10.1001/archpediatrics.2010.139. Epub 2010 Jul 5.
To examine the trends in food advertising seen by American children and adolescents.
Trend analysis of children's and adolescents' exposure to food advertising in 2003, 2005, and 2007, including separate analyses by race.
Children aged 2 to 5 years and 6 to 11 years and adolescents aged 12 to 17 years.
Television ratings.
Exposure to total food advertising and advertising by food category.
Between 2003 and 2007 daily average exposure to food ads fell by 13.7% and 3.7% among young children aged 2 to 5 and 6 to 11 years, respectively, but increased by 3.7% among adolescents aged 12 to 17 years. Exposure to sweets ads fell 41%, 29.3%, and 12.1%, respectively, for 2- to 5-, 6- to 11-, and 12- to 17-year-olds and beverage ads were down by about 27% to 30% across these age groups, with substantial decreases in exposure to ads for the most heavily advertised sugar-sweetened beverages-fruit drinks and regular soft drinks. Exposure to fast food ads increased by 4.7%, 12.2%, and 20.4% among children aged 2 to 5, 6 to 11, and 12 to 17 years, respectively, between 2003 and 2007. The racial gap in exposure to food advertising grew between 2003 and 2007, particularly for fast food ads.
A number of positive changes have occurred in children's exposure to food advertising. Continued monitoring of food advertising exposure along with nutritional analyses is needed to further assess self-regulatory pledges.
研究美国儿童和青少年接触食品广告的趋势。
对2003年、2005年和2007年儿童及青少年接触食品广告的情况进行趋势分析,包括按种族进行单独分析。
2至5岁儿童、6至11岁儿童以及12至17岁青少年。
电视收视率。
接触食品广告总量及各类食品广告的情况。
2003年至2007年期间,2至5岁幼儿和6至11岁儿童每天接触食品广告的平均次数分别下降了13.7%和3.7%,但12至17岁青少年接触食品广告的平均次数增加了3.7%。2至5岁、6至11岁和12至17岁儿童接触甜食广告的次数分别下降了41%、29.3%和12.1%,这些年龄组接触饮料广告的次数下降了约27%至30%,其中广告投放最多的含糖饮料——果汁饮料和普通软饮料的广告接触次数大幅下降。2003年至2007年期间,2至5岁、6至11岁和12至17岁儿童接触快餐广告的次数分别增加了4.7%、12.2%和20.4%。2003年至2007年期间,儿童接触食品广告的种族差距有所扩大,尤其是快餐广告。
儿童接触食品广告方面已出现一些积极变化。需要持续监测食品广告接触情况并进行营养分析,以进一步评估自我监管承诺。