Salad Bars and Students' Fruit and Vegetable Consumption: A Group-randomized Trial With Objective Assessments
试验速览
- 阶段
- 不适用
- 状态
- 终止
- 入组人数
- 7,491
- 试验地点
- 1
- 主要终点
- Change in grams of fruit and vegetables consumed
研究概览
简要总结
The investigators propose an efficacy study (i.e., do salad bars work under controlled conditions in naturalistic settings) to test whether introducing salad bars in elementary, middle, and high schools that have never had salad bars affects students' FV consumption and waste during lunch. A cluster randomized controlled trial will test new salad bars against controls for 6 wks, with/without an additional 4-wk marketing phase .
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Prevention
- 盲法
- Single (Participant)
入排标准
- 年龄范围
- 6 Years 至 18 Years（Child, Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Students enrolled in any grade between grades one and twelve
- •Student ID number matches that on a list of randomly selected student ID numbers from the population of student enrolled in school
- •Students who elect to receive a hot entree at lunch
- •Students who assent to participate
排除标准
- •Students in detention
- •Students in special education
- •Students in Kindergarten
- •Students not in school for any reason (e.g. illness, vacation)
研究组 & 干预措施
Experimental 3
Introduction of a new salad bar and marketing conditions during second semester of school year
干预措施: New salad bar (Behavioral)
Control
No introduction of a new salad bar and no introduction of marketing conditions
Experimental 3
Introduction of a new salad bar and marketing conditions during second semester of school year
干预措施: Marketing (Behavioral)
Experimental 2
Introduction of marketing conditions during second semester of school year
干预措施: Marketing (Behavioral)
Experimental 1
Introduction of a new salad bar during second semester of school year
干预措施: New salad bar (Behavioral)
结局指标
主要结局
Change in grams of fruit and vegetables consumed
时间窗: Baseline (prior to randomization allocation of installation of salad bars), Time 2 (6 weeks after randomization), and Time 3 (10 weeks after randomization)
The amount (grams) of fresh and canned fruits and vegetables consumed at lunch
次要结局
- Change in percent of fruit and vegetables wasted(Baseline (prior to randomization allocation of installation of salad bars), Time 2 (6 weeks after randomization), and Time 3 (10 weeks after randomization))
- Change in grams of fruit and vegetables selected(Baseline (prior to randomization allocation of installation of salad bars), Time 2 (6 weeks after randomization), and Time 3 (10 weeks after randomization))
研究者
Marc Adams, PhD, MPH
Assistant Professor
Arizona State University