Diet Improvement Through Normative Experimentation
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- 入组人数
- 248
- 试验地点
- 2
- 主要终点
- Diet Quality
研究概览
简要总结
This study aims to use a three-arm randomized control trial (RCT) implemented in a fully functional experimental online grocery store, to explore the effects of two low-cost information and incentive-based strategies. These strategies comprise of injunctive norm-based messaging and the use of financial incentive leveraging on loss aversion to encourage the purchase of healthy foods. The investigators have set up a store wherein products may be purchased by participants and subsequently delivered to homes in some of the conditions. This increases the external validity of these interventions and enables investigators to establish greater confidence in their generalizability.
详细描述
The Asia-Pacific is faced with an epidemic of rising rates of chronic disease. Poor diet quality is a demonstrated risk factor for non-communicable diseases. Excess intake of calories, saturated fat and sodium increases the risk of obesity, heart disease, diabetes, and other chronic conditions.
Behavioral economics has emerged as a promising strategy to increase the effectiveness of interventions aimed to address risk factors for non-communicable diseases (NCDs). Yet, there is a gap in knowledge concerning how norm-based messaging and peer influence interventions can be implemented to improve diet quality.
Using a three-arm randomized trial with a 3x3 crossover design, investigators aim to determine whether norm-based messaging and peer comparisons, with or without financial incentives, improve diet quality.
Each participant will be exposed to all of the following intervention arms in random order:
Arm 1: Control arm. Participants will experience an unmodified version of NUSMart which replicates the traditional shopping experience of online grocery stores.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Crossover
- 主要目的
- Health Services Research
- 盲法
- Triple (Participant, Investigator, Outcomes Assessor)
入排标准
- 年龄范围
- 21 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Singapore resident
- •Age 21 and above
- •Must be the primary weekly grocery shopper in their household
排除标准
- •Non-Singapore resident
- •Non-primary grocery shopper in their household
- •Less than 21 years old
结局指标
主要结局
Diet Quality
时间窗: After completion of data collection, an average of about 5 months
Diet quality, as measured by raw Nutri-Score points (-15 to 40) weighted by number of servings of all basket items. Here, a smaller value means a better outcome. Raw Nutri-Score is measured according to the guidelines from the Sante Publique France.
次要结局
- Average Calories(After completion of data collection, an average of about 5 months)
- Average Nutri-Score(After completion of data collection, an average of about 5 months)
- Average Sodium(After completion of data collection, an average of about 5 months)
- Average Saturated Fat(After completion of data collection, an average of about 5 months)
- Average Sugar(After completion of data collection, an average of about 5 months)
- Average Fat(After completion of data collection, an average of about 5 months)
研究者
Eric A. Finkelstein
Professor
Duke-NUS Graduate Medical School