Sensitivity to reward and adolescents' unhealthy snacking and drinking behavior: the role of hedonic eating styles and availability.
Sensitivity to reward and adolescents' unhealthy snacking and drinking behavior: the role of hedonic eating styles and availability.
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DOI：
10.1186/s12966-016-0341-6
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发表时间：
2016-02-09
期刊：
影响因子：
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通讯作者：
Van Camp J
中科院分区：
文献类型：
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作者：
De Cock N;Van Lippevelde W;Goossens L;De Clercq B;Vangeel J;Lachat C;Beullens K;Huybregts L;Vervoort L;Eggermont S;Maes L;Braet C;Deforche B;Kolsteren P;Van Camp J
虽然先前的研究发现奖励敏感性（SR）与青少年不健康的零食和饮酒行为之间存在正相关，但解释这些关联的机制仍有待探索。因此，本研究将检验SR与不健康零食和/或含糖饮料（SSB）摄入之间的关联是否由外部和/或情绪性进食介导，以及这种介导是否受到家庭或学校可获得性的调节。收集了法兰德斯地区20所学校的佛兰德青少年（n = 1104，平均年龄= 14.7±0.8岁，51%男生，18.0%超重）的零食、家中和学校零食的可得性、SR （BAS驱动量表）以及外在和情绪性饮食（荷兰式饮食行为问卷）的横断面数据。采用广义结构方程模型分三个步骤进行了有调节的中介分析：(1)SR与不健康零食或SSB摄入量的直接关联；(2)外部进食或情绪性进食的中介；(3)家庭或学校可用性与情绪或外部进食的相互作用。发现外在进食（a*b = 0.69, p < 0.05）和情绪进食（a*b = 0.92, p < 0.01）在不健康零食摄入与SR的关系中起到部分中介作用（步骤2）。外部进食或情绪性进食并没有介导SR和SSB摄入量之间的关系（步骤2）。没有发现家庭或学校可用性的调节作用（步骤3）。我们的研究结果表明，在以人群为基础的青少年样本中，无论家庭或学校是否提供这些食物，外在和情绪性饮食都可以部分解释SR与不健康零食消费之间的关联。
Although previous research found a positive association between sensitivity to reward (SR) and adolescents’ unhealthy snacking and drinking behavior, mechanisms explaining these associations remain to be explored. The present study will therefore examine whether the associations between SR and unhealthy snack and/or sugar-sweetened beverage (SSB) intake are mediated by external and/or emotional eating and if this mediation is moderated by availability at home or at school. Cross-sectional data on snacking, availability of snacks at home and at school, SR (BAS drive scale) and external and emotional eating (Dutch eating behavior questionnaire) of Flemish adolescents (n = 1104, mean age = 14.7 ± 0.8 years; 51 % boys; 18.0 % overweight) in 20 schools spread across Flanders were collected. Moderated mediation analyses were conducted using generalized structural equation modeling in three steps: (1) direct association between SR and unhealthy snack or SSB intake, (2) mediation of either external or emotional eating and (3) interaction of home or school availability and emotional or external eating. Partial mediation of external eating (a*b = 0.69, p < 0.05) and of emotional eating (a*b = 0.92, p < 0.01) in the relation between SR and intake of unhealthy snacks was found (step 2). The relation between SR and SSB intake was not mediated by external or emotional eating (step 2). No moderation effects of home or school availability were found (step 3). Our findings indicate that the association between SR and the consumption of unhealthy snacks is partially explained by external and emotional eating in a population-based sample of adolescents irrespective of the home or school availability of these foods.