Evaluating the Influence of the Revised Special Supplemental Nutrition Program for Women, Infants, and Children (WIC) Food Allocation Package on Healthy Food Availability, Accessibility, and Affordability in Texas
Evaluating the Influence of the Revised Special Supplemental Nutrition Program for Women, Infants, and Children (WIC) Food Allocation Package on Healthy Food Availability, Accessibility, and Affordability in Texas
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DOI：
10.1016/j.jand.2015.10.021
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发表时间：
2016-02-01
影响因子：
4.8
通讯作者：
Miao, Jingang
中科院分区：
文献类型：
--
作者：
Lu, Wenhua;McKyer, E. Lisako J.;Miao, Jingang
背景实施妇女、婴儿和儿童特殊补充营养计划（WIC）是为了改善孕妇和低社会经济地位儿童的健康。2009年，该计划进行了修订，以提供更多种类的健康食品选择（例如，新鲜水果、蔬菜和全谷物食品）。本研究的目的是评估(1)修订后的WIC营养计划食品分配方案对德克萨斯州WIC授权杂货店健康食品的可得性、可及性和可负担性的影响；(2)政策变化对不同商店类型和城乡地区的影响差异。德克萨斯州设计wic批准的商店（n = 105）使用一种经过验证的工具（88项）进行评估。实施新的WIC一揽子计划之前（2009年6月至9月）和之后（2012年6月至9月）进行了审计。进行配对样本t检验，以比较实施前和实施后审计在货架宽度和品种数量（即可用性）、可见性（即可及性）和通货膨胀调整后价格（即可负担性）方面的差异。结果在105家商店中，实施后审计显示，大多数关键健康食品选择的货架空间增加了，包括水果(P
Background The Special Supplemental Nutrition Program for Women, Infants, and Children (WIC) was implemented to improve the health of pregnant women and children of low socioeconomic status. In 2009, the program was revised to provide a wider variety of healthy food choices (eg, fresh fruits, vegetables, and whole-grain items).Objectives The purpose of this study was to evaluate (1) the impact of the revised WIC Nutrition Program's food allocation package on the availability, accessibility, and affordability of healthy foods in WIC-authorized grocery stores in Texas; and (2) how the impact of the policy change differed by store types and between rural and urban regions.Design WIC-approved stores (n = 105) across Texas were assessed using a validated instrument (88 items). Pre-(June-September 2009) and post-new WIC package implementation (June-September 2012) audits were conducted. Paired-sample t tests were conducted to compare the differences between pre- and post-implementation audits on shelf width and number of varieties (ie, availability), visibility (ie, accessibility), and inflation-adjusted price (ie, affordability).Results Across the 105 stores, post-implementation audits showed increased availability in terms of shelf space for most key healthy food options, including fruit (P