School food reduces household income disparities in adolescents' frequency of fruit and vegetable intake
School food reduces household income disparities in adolescents' frequency of fruit and vegetable intake
复制标题
DOI：
10.1016/j.ypmed.2014.10.008
复制
发表时间：
2014-12-01
影响因子：
5.1
通讯作者：
Dalton, Madeline A.
中科院分区：
文献类型：
--
作者：
Longacre, Meghan R.;Drake, Keith M.;Dalton, Madeline A.
目的：本研究的目的是检验学校食品是否能缩小家庭收入相关的青少年水果和蔬菜摄入频率(FVI)的差异。方法：2007-2008年间，对新英格兰北部的青少年-父母二人组进行了电话调查；参与者被随机分配到一年中不同的时间接受调查。主要的分析包括1542名青少年，他们通常每周至少在学校吃一次早餐/午餐。FVI是通过7天回忆青少年食用水果和蔬菜的次数来衡量的。结果：平均FVI为8.0(SD=5.9)次/周。在没有接触学校食物的青少年中，家庭收入和FVI呈强烈的正相关。相比之下，在接触学校食物的青少年中，FVI在所有收入类别中都是相似的。我们发现学校食品与家庭收入之间存在显著的交叉交互作用，在学校食用食物与低收入家庭青少年的FVI高于高收入家庭青少年的低WI值。结论：学校食品可以缓解青少年FVI的收入差距。研究结果表明，学校饮食环境对低收入青少年的生活质量有正向影响。(C)2014 Elsevier Inc.保留所有权利。
Objective: The aim of this study is to examine whether school food attenuates household income-related disparities in adolescents' frequency of fruit and vegetable intake (FVI).Method: Telephone surveys were conducted between 2007 and 2008 with adolescent-parent dyads from Northern New England; participants were randomly assigned to be surveyed at different times throughout the year. The main analysis comprised 1542 adolescents who typically obtained breakfast/lunch at school at least once/week. FVI was measured using 7-day recall of the number of times adolescents consumed fruits and vegetables. Fully adjusted linear regression was used to compare FVI among adolescents who were surveyed while school was in session (currently exposed to school food) to those who were surveyed when school was not in session (currently unexposed to school food).Results: Mean FVI was 8.0 (SD = 5.9) times/week. Among adolescents unexposed to school food, household income and FVI were strongly, positively associated. In contrast, among adolescents exposed to school food, FVI was similar across all income categories. We found a significant cross-over interaction between school food and household income in which consuming food at school was associated with higher FVI among adolescents from low-income households versus lower WI among adolescents from high-income households.Conclusion: School food may mitigate income disparities in adolescent FVI. The findings suggest that the school food environment positively influences WI among low-income adolescents. (C) 2014 Elsevier Inc All rights reserved.