1Department of Community Health Sciences,Fielding School of Public Health,University of California Los Angeles,650 Charles E. Young Drive South,36-071 CHS,Los Angeles,CA 90095-1772,USA.
2Department of Health Management and Policy,Dornsife School of Public Health,Drexel University,Philadelphia,PA,USA.
Public Health Nutr. 2017 Aug;20(12):2249-2259. doi: 10.1017/S1368980017001008. Epub 2017 Jun 5.
Investments have been made to alter the food environment of neighbourhoods that have a disproportionate number of unhealthy food venues. Corner store conversions are one strategy to increase access to fruits and vegetables (F&V). Although the literature shows modest success, the effectiveness of these interventions remains equivocal. The present paper reports on the evaluation of Proyecto MercadoFRESCO, a corner store conversion intervention in two Latino communities.
A repeated cross-sectional design was employed. Data were stratified by intervention arm and bivariate tests assessed changes over time. Logistic and multiple regression models with intervention arm, time and the interaction of intervention and time were conducted. Supplementary analyses account for clustering of patrons within stores and staggering of store conversions.
Three stores were converted and five stores served as comparisons in East Los Angeles and Boyle Heights, California, USA.
Store patrons were interviewed before (n550) and after (n407) the intervention.
Relative to patrons of comparison stores, patrons of intervention stores demonstrated more favourable perceptions of corner stores and increased purchasing of F&V during that store visit. Changes were not detected in store patronage, percentage of weekly dollars spent on food for F&V or daily consumption of F&V.
Consistent with some extant food environment literature, findings demonstrate limited effects. Investments should be made in multilevel, comprehensive interventions that target a variety retail food outlets rather than focusing on corner stores exclusively. Complementary policies limiting the availability, affordability and marketing of energy-dense, nutrient-poor foods should also be pursued.
为改变那些拥有过多不健康食品场所的社区的食品环境,已经进行了投资。街角商店转换是增加水果和蔬菜(F&V)获取途径的一种策略。尽管文献表明这种干预措施取得了一定的成功,但这些干预措施的效果仍然存在争议。本文报告了 Proyecto MercadoFRESCO 的评估结果,这是一项在两个拉丁裔社区进行的街角商店转换干预措施。
采用重复横截面设计。数据按干预组分层,使用双变量检验评估随时间的变化。采用干预组、时间以及干预和时间的交互作用的逻辑和多元回归模型进行分析。补充分析考虑了顾客在商店内的聚类和商店转换的交错。
在美国加利福尼亚州东洛杉矶和博伊尔高地的三个商店进行了转换,五个商店作为对照。
在干预之前(n550)和之后(n407)对商店顾客进行了访谈。
与对照商店的顾客相比,干预商店的顾客对街角商店的看法更为有利,并且在该商店购买 F&V 的比例有所增加。在商店光顾频率、每周用于购买 F&V 的食品的美元百分比或每日 F&V 消费方面,没有发现变化。
与一些现有的食品环境文献一致,研究结果表明干预效果有限。应投资于多层次、综合性的干预措施,针对各种零售食品店,而不仅仅是专注于街角商店。还应推行补充政策,限制高能量、低营养食品的供应、可负担性和营销。