A cash-back rebate program for healthy food purchases in South Africa: results from scanner data.
A cash-back rebate program for healthy food purchases in South Africa: results from scanner data.
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DOI：
10.1016/j.amepre.2013.02.011
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发表时间：
2013-06
影响因子：
5.5
通讯作者：
Patel, Deepak
中科院分区：
文献类型：
--
作者：
Sturm, Roland;An, Ruopeng;Segal, Darren;Patel, Deepak
改善饮食质量是一项关键的健康促进战略。人们对价格和财政激励措施在鼓励健康饮食方面的作用很感兴趣，但没有来自大规模人口干预的数据。这项研究探讨了南非最大的健康计划的成员之间的家庭杂货店购物行为的健康食品降价的影响。HealthyFood计划为在南非所有省份的400多家指定超市购买健康食品提供高达25%的返现回扣。2009年至2012年期间，每月家庭超市食品购买扫描仪数据与170，000个使用Visa信用卡的家庭（60%符合退税条件）相关联。两种方法被用来控制选择性参与使用这些面板数据：家庭固定效应模型和病例对照差异模型。健康食品10%和25%的回扣与健康食品占总食品支出的比例增加6.0%有关（95% CI=5.3，6.8）和9.3%（95% CI=8.5，10.0）;水果和蔬菜占食品总支出的比例增加5.7%（95% CI=4.5，6.9）和8.5%（95% CI=7.3，9.7）;不太理想占总食物支出的比例下降了5.6%（95% CI=4.7，6.5）和7.2%（95% CI=6.3，8.1）。参与健康食品折扣计划导致健康食品购买量增加，不太理想的食品购买量减少，其幅度与美国时间序列数据的估计相似。
Improving diet quality is a key health promotion strategy. There is much interest in the role of prices and financial incentives to encourage healthy diet, but no data from large population interventions. This study examines the effect of a price reduction for healthy food items on household grocery shopping behavior among members of South Africa's largest health plan. The HealthyFood program provides a cash-back rebate of up to 25% for healthy food purchases in over 400 designated supermarkets across all provinces in South Africa. Monthly household supermarket food purchase scanner data between 2009 and 2012 are linked to 170,000 households (60% eligible for the rebate) with Visa credit cards. Two approaches were used to control for selective participation using these panel data: a household fixed-effect model and a case–control differences-in-differences model. Rebates of 10% and 25% for healthy foods are associated with an increase in the ratio of healthy to total food expenditure by 6.0% (95% CI=5.3, 6.8) and 9.3% (95% CI=8.5, 10.0); an increase in the ratio of fruit and vegetables to total food expenditure by 5.7% (95% CI=4.5, 6.9) and 8.5% (95% CI=7.3, 9.7); and a decrease in the ratio of less desirable to total food expenditure by 5.6% (95% CI=4.7, 6.5) and 7.2% (95% CI=6.3, 8.1). Participation in a rebate program for healthy foods led to increases in purchases of healthy foods and to decreases in purchases of less-desirable foods, with magnitudes similar to estimates from U.S. time-series data.
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影响因子：
3.2
作者：
An, Ruopeng
通讯作者：
An, Ruopeng
影响因子：
12.7
作者：
Andreyeva, Tatiana;Long, Michael W.;Brownell, Kelly D.
通讯作者：
Brownell, Kelly D.
DOI：
10.1111/obr.12002
发表时间：
2013-02
期刊：
Obesity reviews : an official journal of the International Association for the Study of Obesity
影响因子：
--
作者：
Powell LM;Chriqui JF;Khan T;Wada R;Chaloupka FJ
通讯作者：
Chaloupka FJ
影响因子：
5.2
作者：
Sturm, R.;Datar, A.
通讯作者：
Datar, A.