A longitudinal intervention to improve young children's liking and consumption of new foods: findings from the Colorado LEAP study
A longitudinal intervention to improve young children's liking and consumption of new foods: findings from the Colorado LEAP study
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DOI：
10.1186/s12966-019-0808-3
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发表时间：
2019-06-03
影响因子：
8.7
通讯作者：
Bellows, Laura L.
中科院分区：
文献类型：
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作者：
Johnson, Susan L.;Ryan, Sarah M.;Bellows, Laura L.
为了提高幼儿对新食物的喜爱和消费，已经进行了许多干预措施，但它们对儿童消费的影响有限。一致的证据支持使用重复暴露来提高对新食物的喜爱，但持续超过6个月的纵向效应通常没有得到证明。在这里，我们报告了科罗拉多纵向饮食和身体活动（LEAP）研究的饮食相关发现，这是一项多成分干预研究，主要在学校环境中进行，旨在通过反复暴露和积极的体验式学习来提高儿童对目标食物的喜爱和消费。方法在科罗拉多州农村的4个地点（2个干预地点和2个对照地点），每个地点都有Head Start学前教育项目，与州儿童肥胖率的重要统计数据相匹配，参与了一项准实验研究设计，包括4个时间点（基线、干预后、1年和2年随访）。共纳入250名儿童和家庭（干预组143名，对照组107名；41%为西班牙裔，69%为低收入家庭）。一个为期12周的干预，Food Friends - Fun With New Foods (R)，由训练有素的幼儿园教师提供，重点是积极和重复的新食物体验，以及一个为期5个月（1个单元/月）的社会营销促进计划，在幼儿园（一年随访）和一年级（两年随访）进行。主要结果测量包括儿童对新食物的喜爱程度的变化，使用广义估计方程进行有序回归分析，以及使用分层混合效应模型分析新食物的称重消耗量随时间的变化。结果干预的保真度较高（87%）。随着时间的推移，干预组和对照组对目标食物的喜爱程度都有所增加（p=0.0001）。随着时间的推移，干预组和对照组的目标食物的消费模式是不同的
BackgroundMany interventions have been conducted to improve young children's liking and consumption of new foods however their impacts on children's consumption have been limited. Consistent evidence supports the use of repeated exposure to improve liking for new foods however longitudinal effects lasting greater than 6months often have not been demonstrated. Here we report the eating-related findings of the Colorado Longitudinal Eating And Physical Activity (LEAP) Study, a multi-component intervention, delivered primarily in the school setting, which aimed to improve children's liking and consumption of a target food via repeated exposure and positive experiential learning.MethodsFour sites in rural Colorado, each housing Head Start preschool programs, matched on state vital statistics for childhood obesity rates, (2 intervention and 2 control sites) took part in a quasi-experimental study design which included 4 time points (baseline, post-intervention, one-year [Y1] and two- year [Y2] follow ups). A total of 250 children and families were enrolled (n=143 intervention and n=107 control; 41% Hispanic and 69% low-income). A 12-week intervention, Food Friends - Fun With New Foods (R), delivered by trained preschool teachers and which focuses on positive and repeated experiences with new foods, and a 5-month (1 unit/month) social marketing booster program was delivered in kindergarten (one-year follow up) and 1st grade (two-year follow up). Main outcome measures included change in children's liking for new foods, analyzed by ordinal regression using generalized estimating equations, and change in weighed consumption of new foods over time, analyzed using a hierarchical mixed effects model.ResultsThe intervention was delivered with good fidelity (87%). Both intervention and control groups demonstrated an increase in liking for the target food over time (p=0.0001). The pattern of consumption of the target food was different, over time, for intervention and control groups (p