Byrd-Bredbenner Carol, Martin-Biggers Jennifer, Povis Gayle Alleman, Worobey John, Hongu Nobuko, Quick Virginia
Rutgers, The State University of New Jersey, 26 Nichol Avenue, New Brunswick, NJ 08901, USA.
University of Arizona, Department of Nutritional Sciences, 406 Shantz Building, 1177 E. 4th Street, Tucson, AZ 85721-0038, USA.
Contemp Clin Trials. 2018 Jan;64:139-151. doi: 10.1016/j.cct.2017.10.012. Epub 2017 Oct 24.
The purpose of the HomeStyles randomized controlled trial was to determine the effect of participation in the HomeStyles intervention vs an attention control condition on the weight-related aspects of the home environment and lifestyle behavioral practices of families with preschool children. Parents of preschool children (n=489) were systematically randomized to experimental or attention control group after completing the baseline survey. Baseline and post surveys comprehensively assessed study outcomes using a socio-ecological approach incorporating valid, reliable intrapersonal (e.g., diet, activity), interpersonal (e.g., family meal frequency), and environmental measures (e.g., home media environment), and self-reported parent and child measured heights and weights. For all outcome measures, paired t-tests compared within group differences over time and ANCOVA, controlling for baseline scores and prognostic variables (e.g., parent sex), determined differences in post survey scores between groups. The final analytical sample (N=172; age 32.34±5.71SD; 58% White; 93% female) completed baseline and post surveys. The experimental group families had improved family meal and diet-related behaviors, and self-efficacy for food-related childhood obesity-protective practices. Household food supplies changed little, except for less availability of salty/fatty snacks. Within group effects indicated the control group also experienced some improvements, however these were few in number. ANCOVA revealed the experimental group parents had greater physical activity, reduced screentime, improved family mealtime behaviors, and increased self-efficacy for childhood obesity-protective behaviors and cognitions compared to the control group at post survey, though effect sizes were small. The HomeStyles program for families with preschool children promoted improvements in an array of obesity-preventive behaviors.
“家庭风格”随机对照试验的目的是确定参与“家庭风格”干预与关注控制条件相比，对有学龄前儿童家庭的家庭环境中与体重相关的方面以及生活方式行为习惯的影响。学龄前儿童的父母（n = 489）在完成基线调查后被系统地随机分配到实验组或关注控制组。基线调查和后续调查采用社会生态方法，综合评估研究结果，该方法纳入了有效、可靠的个人层面（如饮食、活动）、人际层面（如家庭用餐频率）和环境层面（如家庭媒体环境）的测量指标，以及自我报告的父母和孩子的测量身高和体重。对于所有结果指标，配对t检验比较了组内随时间的差异，而协方差分析在控制基线分数和预后变量（如父母性别）的情况下，确定了两组在后续调查分数上的差异。最终分析样本（N = 172；年龄32.34±5.71标准差；58%为白人；93%为女性）完成了基线调查和后续调查。实验组家庭在家庭用餐和与饮食相关的行为方面有所改善，并且在与儿童肥胖预防相关行为的自我效能方面有所提高。家庭食物供应变化不大，只是咸/油腻零食的可获得性有所减少。组内效应表明对照组也有一些改善，然而数量很少。协方差分析显示，与对照组相比，实验组父母在后续调查时身体活动更多、屏幕使用时间减少、家庭用餐时间行为改善，并且在儿童肥胖预防行为和认知方面的自我效能有所提高，尽管效应量较小。针对有学龄前儿童家庭的“家庭风格”项目促进了一系列肥胖预防行为的改善。
