Department of Social Sciences and Health Policy, Division of Public Health Sciences, Wake Forest University School of Medicine, Winston-Salem, NC 27157, USA.
J Nutr Educ Behav. 2012 May-Jun;44(3):225-32. doi: 10.1016/j.jneb.2011.05.016. Epub 2011 Nov 21.
This study tested the efficacy of a multicomponent supermarket point-of-purchase intervention featuring in-person nutrition education on the nutrient composition of food purchases.
The design was a randomized trial comparing the intervention with usual care (no treatment).
A supermarket in a socioeconomically diverse region of Phoenix, AZ. One hundred fifty-three adult shoppers were recruited onsite.
The intervention consisted of brief shopping education by a nutrition educator and an explanation and promotion of a supermarket point-of-purchase healthful shopping program that included posted shelf signs identifying healthful foods, sample shopping lists, tips, and signage.
Outcomes included purchases of total, saturated, and trans fat (grams/1,000 kcal), and fruits, vegetables, and dark-green/yellow vegetables (servings/1,000 kcal) derived through nutritional analysis of participant shopping baskets.
Analysis of covariance compared the intervention and control groups on food purchasing patterns while adjusting for household income.
The intervention resulted in greater purchasing of fruit and dark-green/yellow vegetables. No other group differences were observed.
Long-term evaluations of supermarket interventions should be conducted to improve the evidence base and to determine the potential for influence on food choices associated with decreased chronic disease incidence.
本研究测试了一种多成分超市销售点干预措施的效果，该措施的特点是提供面对面的营养教育，以改善食品购买的营养成分。
该设计是一项随机试验，比较了干预组与常规护理（无治疗）组的效果。
亚利桑那州凤凰城一个社会经济多样化地区的一家超市。招募了 153 名成年购物者在现场参与。
干预措施包括由营养教育者进行简短的购物教育，以及解释和推广超市销售点的健康购物计划，其中包括张贴货架标签以识别健康食品、样本购物清单、小贴士和标识。
结果包括通过对参与者购物篮的营养分析得出的总、饱和和反式脂肪（克/1000 千卡）以及水果、蔬菜和深绿色/黄色蔬菜（份/1000 千卡）的购买量。
协方差分析比较了干预组和对照组在调整家庭收入后的食物购买模式。
干预组购买的水果和深绿色/黄色蔬菜更多。未观察到其他组间差异。
应进行长期的超市干预评估，以改善证据基础，并确定对减少慢性疾病发病率相关的食物选择的潜在影响。
