Evaluation of the Healthy Foods Program

健康食品计划的评估

• 批准号: 8175537
• 负责人: ROLAND STURM
• 金额: $ 20万
• 依托单位: RAND CORPORATION
• 依托单位国家: 美国
• 财政年份: 2011
• 资助国家: 美国
• 起止时间: 2011-09-14 至 2013-08-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/8175537
• 关键词: Address; Affect; African; Agreement; Behavior; Behavioral Risk Factor Surveillance System; Binding; Canned Foods; Characteristics; Complement; Congresses; Control Groups; County; Data; Data Analyses; Data Collection; Data Sources; Databases; Diet; Diet and Nutrition; Eating; Eating Behavior; Economic Policy; Economics; Enrollment; Evaluation; Exploratory/Developmental Grant; Food; Food Preferences; Future; Goals; Guidelines; Health; Health Insurance; Health Status; Health Surveys; Health behavior; Healthcare; Home environment; Household; Incentives; Individual; International; Lead; Massachusetts; Modeling; Obesity; Outcome; Participant; Patient Self-Report; Pilot Projects; Population; Population Study; Price; Publishing; Research; Role; Sales; Sampling; Secondary to; Selection Bias; Supermarket; Terminology; Wellness Program; Work; community setting; discount; environmental change; fight against; financial incentive; fruits and vegetables; improved; innovation; instrumentation; prevent; programs; theories

DESCRIPTION (provided by applicant): Improving diet quality is a central component in the fight against obesity. One hotly debated topic is the role of prices for healthy foods and nutritionally less desirable foods, but little data is available. Congress has asked USDA to conduct a pilot study that provides discounts on healthy foods, but this project has not started yet and will be limited to selected individuals in a single county in Massachusetts. We propose to analyze data from a much larger program that was started in 2009 by the South African health insurance company Discovery. Discovery's HealthyFood program provides rebate of up to 25% on healthy items through a nationwide supermarket chain and presently enrolls about 200,000 households. Food items eligible for a discount on the HealthyFood benefit were selected in agreement with international and US dietary guidelines and are marked on cash register receipts and on the shelves. We will consider the overall impact of the program on purchases, diets, and health outcomes, and also try to separate out the effects of the financial incentives from the educational component and environmental changes that affect the whole population. Our primary statistical approach is difference-in-difference analysis (pre/post of individuals becoming eligible for benefit with control groups), complemented with additional statistical analyses to address selection biases. Data sources include both individual health surveys, sales data from supermarkets (individual line items and linkable to individuals), and health care claims. PUBLIC HEALTH RELEVANCE: This project will evaluate a program that addresses a central issue to improve diet and prevent obesity: What if healthy foods were cheaper? About 200,000 households are currently enrolled in Discovery's HealthyFoodbenefit, a program that gives them a substantial rebate on their healthy food purchases. By studying changes in purchasing behavior, in self-reported diets, and in other health outcomes among HealthyFoodparticipants and a control group, we will be able to provide the first results on what meaningful price changes for healthier foods could achieve at the population level.

描述（由申请人提供）：改善饮食质量是对抗肥胖的核心组成部分。一个热议的话题是健康食品和营养不良食品价格的作用，但很少有数据可用。国会已经要求美国农业部进行一项试点研究，为健康食品提供折扣，但该项目尚未开始，将仅限于马萨诸塞州一个县的选定个人。我们建议分析2009年由南非健康保险公司Discovery启动的一个更大的项目的数据。Discovery的健康食品计划通过全国连锁超市为健康食品提供高达25%的折扣，目前约有20万户家庭参与该计划。有资格享受健康食品福利折扣的食品是根据国际和美国膳食指南选择的，并在收银机收据和货架上做了标记。我们将考虑该计划对购买、饮食和健康结果的总体影响，并试图将财政激励的影响与影响整个人口的教育成分和环境变化区分开来。我们的主要统计方法是差异中差异分析（个体与对照组一起符合受益条件的前后），并辅以额外的统计分析来解决选择偏差。数据源包括个人健康调查、来自超市的销售数据（单独的行项目和可链接到个人）和医疗保健索赔。