Advertising as a cue to consume: a systematic review and meta-analysis of the effects of acute exposure to unhealthy food and nonalcoholic beverage advertising on intake in children and adults
Advertising as a cue to consume: a systematic review and meta-analysis of the effects of acute exposure to unhealthy food and nonalcoholic beverage advertising on intake in children and adults
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DOI：
10.3945/ajcn.115.120022
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发表时间：
2016-02-01
影响因子：
7.1
通讯作者：
Robinson, Eric
中科院分区：
文献类型：
--
作者：
Boyland, Emma J.;Nolan, Sarah;Robinson, Eric
背景资料：有几项研究评估了食品和非酒精饮料（以下统称为食品）广告对食品消费的影响，但这些研究的结果好坏参半。这种缺乏明确性可能会阻碍政策action.Objective：我们研究的证据急性接触实验不健康的食品广告和food consumption.Design：这项研究是一个系统的审查和荟萃分析发表的研究中，广告曝光（电视或互联网）实验操纵，和食物摄入量进行了测量。在5个电子数据库中检索相关出版物（SCOPUS、PsycINFO、MEDLINE、Emerald Insight和JSTOR）。逆方差荟萃分析，其中标准化的平均差异（SMD）在食物摄入量之间的计算不健康的食品广告和控制conditions.Results：22篇文章有资格列入。纳入荟萃分析的18篇文章的数据可用（提供了20项比较）。在纳入所有可用数据的情况下，分析表明广告对食物消费量的影响较小至中等，参与者在接触食品广告后比对照条件下吃得更多（SMD：0.37; 95% CI：0.09; 0.65; I-2 = 98%）。亚组分析表明，对成年参与者的实验没有提供广告对摄入量影响的证据（SMD：0.00; P = 1.00; 95%CI：0.08，0.08; I-2 = 8%），但中等体型对儿童有显著影响，因此食品广告暴露与更大的食物摄入量相关（SMD：0.56; P = 0.003; 95%CI：0.18，0.94; I-2 = 98%）。结论：迄今为止的证据表明，急性暴露于食品广告会增加儿童的食物摄入量，但不会增加成人的食物摄入量。这些数据支持旨在减少儿童接触不健康食品广告的公共卫生政策行动。
Background: Several studies have assessed the effects of food and nonalcoholic beverage (hereafter collectively referred to as food) advertising on food consumption, but the results of these studies have been mixed. This lack of clarity may be impeding policy action.Objective: We examined the evidence for a relation between acute exposure to experimental unhealthy food advertising and food consumption.Design: The study was a systematic review and meta-analysis of published studies in which advertising exposure (television or Internet) was experimentally manipulated, and food intake was measured. Five electronic databases were searched for relevant publications (SCOPUS, PsycINFO, MEDLINE, Emerald Insight, and JSTOR). An inverse variance meta-analysis was used whereby the standardized mean difference (SMD) in food intake was calculated between unhealthy food advertising and control conditions.Results: Twenty-two articles were eligible for inclusion. Data were available for 18 articles to be included in the meta-analysis (which provided 20 comparisons). With all available data included, the analysis indicated a small-to-moderate effect size for advertising on food consumption with participants eating more after exposure to food advertising than after control conditions (SMD: 0.37; 95% CI: 0.09; 0.65; I-2 = 98%). Subgroup analyses showed that the experiments with adult participants provided no evidence of an effect of advertising on intake (SMD: 0.00; P = 1.00; 95% CI: 0.08, 0.08; I-2 = 8%), but a significant effect of moderate size was shown for children, whereby food advertising exposure was associated with greater food intake (SMD: 0.56; P = 0.003; 95% CI: 0.18, 0.94; I-2 = 98%).Conclusions: Evidence to date shows that acute exposure to food advertising increases food intake in children but not in adults. These data support public health policy action that seeks to reduce children's exposure to unhealthy food advertising.