Process evaluation of a cluster randomised controlled trial of a school-based fruit and vegetable intervention: Project Tomato
Process evaluation of a cluster randomised controlled trial of a school-based fruit and vegetable intervention: Project Tomato
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DOI：
10.1017/s1368980011001844
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发表时间：
2012-03-01
影响因子：
3.2
通讯作者：
Cade, Janet E.
中科院分区：
文献类型：
--
作者：
Christian, Meaghan S.;Evans, Charlotte E. L.;Cade, Janet E.
目的：本研究旨在评价一项旨在维持8-9岁儿童水果和蔬菜摄入量的干预措施--番茄计划的整体评价和实施情况。设计：随机抽取54所英国小学(658名儿童)，随机分为干预组和对照组。干预组收到了由教师在学校提供的多个组成部分的方案和寄回家给父母/孩子的物品。在基线和随访时收集饮食测量数据。干预对象：共311名接受干预的儿童。结果：干预的实施率较低，21.3%的学校和56.0%的家庭项目得到落实。干预材料受到教师、家长和儿童的一致好评。还探讨了其他可能影响水果和蔬菜摄入量的机制。每周与父母一起进餐3~7晚的儿童平均多摄入37.6(95%CI 9.8，65.4)g水果和蔬菜，比每周与父母一起进食0~2次的儿童多摄入37.6 g水果和蔬菜。然而，研究结果证实了父母环境和进餐时间结构对儿童水果和蔬菜摄入量的重要性。
Objective: The present analysis evaluates the overall appreciation and implementation of an intervention, Project Tomato, designed to maintain fruit and vegetable intake in children aged 8-9 years.Design: A random sample of fifty-four English primary schools (658 children) were randomised to either the intervention group or the control. The intervention group received a multi-component programme delivered in school by teachers and items sent home for parents/children. Dietary measurements were collected at baseline and follow-up. The intervention participants completed questionnaires on the intervention materials, to identify implementation and appreciation of the intervention, and other environmental mechanisms.Setting: Fifty-four primary schools were randomly selected, with twenty-seven schools allocated to the intervention group.Subjects: A total of 311 children received the intervention.Results: Implementation of the intervention was low, 21.3% of school items and 56.0% of home items were implemented. The intervention materials were well received by teachers, parents and children. Other mechanisms that may affect fruit and vegetable intake were explored. Children who ate their main meal with their parents 3-7 nights/week on average consumed 37.6 (95% CI 9.8, 65.4) g more fruit and vegetables than children who ate with their parents 0-2 times/week.Conclusions: Implementation of the trial components was poor. However, the results identified the importance of parental environment and mealtime structure on children's fruit and vegetable intake.