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The Grocery Purchase Quality Index-2016 Performs Similarly to the Healthy Eating Index-2015 in a National Survey of Household Food Purchases
Journal of the Academy of Nutrition and Dietetics ( IF 4.8 ) Pub Date : 2019-01-01 , DOI: 10.1016/j.jand.2018.08.165
Philip J. Brewster , Carrie M. Durward , John F. Hurdle , Gregory J. Stoddard , Patricia M. Guenther

BACKGROUND Household food purchases are potential indicators of the quality of the home food environment, and grocery purchase behavior is a main focus of US Department of Agriculture (USDA) nutrition education programs; therefore, objective measures of grocery purchases are needed. OBJECTIVE The objective of the study was to evaluate the Grocery Purchase Quality Index-2016 (GPQI-2016) as a tool for assessing grocery food purchase quality by using the Healthy Eating Index-2015 (HEI-2015) as the reference standard. DESIGN In 2012, the USDA Economic Research Service conducted the National Household Food Acquisition and Purchase Survey. Members of participating households recorded all foods acquired for a week. Foods purchased at stores were mapped to the 29 food categories used in USDA Food Plans, expenditure shares were estimated, and GPQI-2016 scores were calculated. USDA food codes, provided in the survey database, were used to calculate the HEI-2015. PARTICIPANTS/SETTING All households in the 48 coterminous states were eligible for the survey. The analytic sample size was 4,276 households. MAIN OUTCOME MEASURES GPQI-2016 and HEI-2015 scores were compared. STATISTICAL ANALYSES PERFORMED Correlation of scores was assessed using Spearman's correlation coefficient. Linear regression models with fixed effects were used to determine differences among various subgroups of households. RESULTS The correlation coefficient for the total GPQI-2016 score and the total HEI-2015 score was 0.70. For the component scores, the strongest correlations were for Total and Whole Fruit (0.89 to 0.90); the weakest were for Dairy (0.67), Refined Grains (0.66), and Sweets and Sodas/Added Sugars (0.65) (all, P<0.01). Both the GPQI-2016 and HEI-2015 were significantly different among subgroups in expected directions. CONCLUSIONS Overall, the GPQI-2016, estimated from a national survey of households, performed similarly to the HEI-2015. The tool has potential for evaluating nutrition education programs and retail-oriented interventions when the nutrient content and gram weights of foods purchased are not available.

中文翻译:

在一项全国家庭食品购买调查中,2016 年杂货购买质量指数与 2015 年健康饮食指数表现相似

背景 家庭食品购买是家庭食品环境质量的潜在指标,食品购买行为是美国农业部 (USDA) 营养教育计划的主要关注点;因此,需要对杂货购买进行客观的衡量。目标 本研究的目的是通过使用健康饮食指数 2015 (HEI-2015) 作为参考标准,评估 2016 年杂货采购质量指数 (GPQI-2016) 作为评估杂货食品采购质量的工具。设计 2012 年,美国农业部经济研究局进行了全国家庭食品采购调查。参与家庭的成员记录了一周内获得的所有食物。在商店购买的食品被映射到美国农业部食品计划中使用的 29 种食品类别,估计支出份额,并计算了 GPQI-2016 分数。调查数据库中提供的美国农业部食品代码用于计算 HEI-2015。参与者/环境 48 个相邻州的所有家庭都有资格参加调查。分析样本量为 4,276 户。主要结果测量 GPQI-2016 和 HEI-2015 得分进行了比较。执行的统计分析使用斯皮尔曼相关系数评估分数的相关性。使用具有固定效应的线性回归模型来确定不同家庭亚组之间的差异。结果 GPQI-2016 总分和 HEI-2015 总分的相关系数为 0.70。对于成分分数,相关性最强的是总水果和全果(0.89 到 0.90);最弱的是乳制品 (0.67)、精制谷物 (0.66)、和糖果和苏打水/添加糖 (0.65)(所有,P < 0.01)。GPQI-2016 和 HEI-2015 在预期方向上的亚组之间存在显着差异。结论 总体而言,根据全国家庭调查估计的 GPQI-2016 表现与 HEI-2015 相似。当所购食品的营养成分和克重不可用时,该工具具有评估营养教育计划和面向零售的干预措施的潜力。
更新日期:2019-01-01
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