Multi-level Supermarket Discounts of Fruits and Vegetables' Impact on Intake and Health
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 167
- 试验地点
- 1
- 主要终点
- Fruit Intake as Assessed by 24-h Dietary Recalls
研究概览
简要总结
The study team's objective is to test the effect of supermarket discount levels on fruit and vegetable (F&V) and non-caloric beverage purchasing and consumption, as well as health outcomes. The study team will implement this economic intervention in a local supermarket chain to assess the effects of a 32-week intervention of fruit and vegetable (F&V) and non-caloric beverage discounts of 30%, 15%, and 0% (control group) on purchasing, dietary intake, and health outcomes, including body weight and composition, blood pressure, and biochemical markers of cardiovascular disease risk. The 32-week intervention will be preceded by an 8-week baseline and will have a follow-up period of 16 weeks. There will be no discounts in effect during the baseline and follow-up periods.
详细描述
The objective is to test the effect of supermarket discount levels on fruit and vegetable (F&V) and non-caloric beverage purchasing and consumption, as well as health outcomes. The study team will implement this economic intervention in a local supermarket chain to assess the effects of a 32-week intervention of fruit and vegetable (F&V) and non-caloric beverage discounts of 30%, 15%, and 0% (control group) on purchasing, dietary intake, and health outcomes, including body weight and composition, blood pressure, and biochemical markers of cardiovascular disease risk. The prediction is that the impact will increase with the level of discount. The 32-week intervention will be preceded by an 8-week baseline and will have a follow-up period of 16 weeks. There will be no discounts in effect during the baseline and follow-up periods. The prediction is that some of the interventional effects will carry over to the follow-up period.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Treatment
- 盲法
- Single (Outcomes Assessor)
入排标准
- 年龄范围
- 18 Years 至 70 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •BMI: 24.5 - 50
- •Weight Stable (±5% body weight in last 3 mo)
- •Accessible by telephone
- •Living in NYC and not planning move
- •Primary household food shopper
- •≥50% of food shopping at Foodtown/Brooklyn Harvest and agrees to 100% shopping at store during study
- •Consumption of >50% of food shopping
- •Eat out or take out ≤5 times weekly
排除标准
- •Pregnant or contemplating pregnancy
- •Enrolled in related studies
- •Active weight loss program
- •Presence of serious medical (e.g. cancer, diabetes) or psychiatric disease (e.g. bipolar)
- •Changes in medications or smoking in past 3 mo
- •Excessive alcohol use (≥4 drinks/day) or illicit drug use
- •Planning a vacation ≥ 4 consecutive weeks or 6 total weeks during study
- •Receiving SNAP benefits
研究组 & 干预措施
No intervention control group
0% discount on fruits, vegetables and non-caloric beverages at the designated supermarkets
Experimental 15% discount intervention
15% discount on fruits, vegetables and non-caloric beverages at the designated supermarkets
干预措施: Discount Intervention (Behavioral)
Experimental 30% discount intervention
30% discount on fruits, vegetables and non-caloric beverages at the designated supermarkets
干预措施: Discount Intervention (Behavioral)
结局指标
主要结局
Fruit Intake as Assessed by 24-h Dietary Recalls
时间窗: Week 8, 24, 40, 56
Individual consumption behaviors: Fruit intake as assessed by 24-h dietary recalls
Vegetable Intake as Assessed by 24-h Dietary Recalls
时间窗: Week 8, 24, 40, 56
Individual consumption behaviors: Vegetable intake as assessed by 24-h dietary recalls
Bottled Water Intake as Assessed by 24-h Dietary Recalls
时间窗: Week 8, 24, 40, 56
Individual consumption behaviors: bottled water intake as assessed by 24-h dietary recalls
Seltzer Water Intake as Assessed by 24-h Dietary Recalls
时间窗: Week 8, 24, 40, 56
Individual consumption behaviors: seltzer water intake as assessed by 24-h dietary recalls
Diet Soda Intake as Assessed by 24-h Dietary Recalls
时间窗: Week 8, 24, 40, 56
Individual consumption behaviors: diet soda intake as assessed by 24-h dietary recalls
Total Non-caloric Beverage Intake as Assessed by 24-h Dietary Recalls
时间窗: Week 8, 24, 40, 56
Individual consumption behaviors: Total non-caloric beverage intake as assessed by 24-h dietary recalls
次要结局
- Cholesterol Level(Week 0, 8, 24, 40, 56)
- Blood Pressure(Week 0, 8, 24, 40, 56)
- Body Weight(Week 0, 8, 24, 40, 56)
- Body Mass Index (BMI)(Week 0, 8, 24, 40, 56)
- Percent Body Fat(Week 0, 8, 24, 40, 56)
- Waist Circumference(Week 0, 8, 24, 40, 56)
- Fasting Glucose(Week 0, 8, 24, 40, 56)
- Gross Weekly Purchasing of Fruits and Vegetables(Week 8-56)
研究者
Allan Geliebter
Professor, Department of Psychiatry
Icahn School of Medicine at Mount Sinai