Mattel Children’s Hospital, Department of Pediatrics, University of California-Los Angeles School of Medicine, Los Angeles, CA 90024,
Child Obes. 2012 Feb;8(1):52-9. doi: 10.1089/chi.2011.0060.
Latino preschool children in the United States are at high risk for obesity. The objective of this study was to measure over a one-year period whether a parent training based on social learning theory combined with evidence-based interventions to promote optimal nutrition and physical activity will reduce the upward trend of BMI z-scores in groups of 2–4 year old Latino children living in low-income households.
Seven weekly classes with 2 booster classes were delivered to low-income Latino parents with 2–4 year old children. A randomized controlled pilot study evaluated the effectiveness of the intervention that contrasts 61 children whose parents were randomized to receive Parent Training (PT) with 60 Wait-list (WL) subjects. Forty subjects did not attend the one-year follow up assessment, resulting in 81 subjects who have measurements for both baseline and one-year follow up assessments. To adjust for differential dropout rates and missing observations, imputation of missing data was done using a carefully constructed model that included relevant independent variables.
There were no significant subject differences between groups at baseline for family characteristics and BMI categories for child and parent. Children in the intervention group decreased their BMI z-scores significantly on average by .20 (SE= .08) compared to children in the control group who increased z scores on average by .04 (SE=.09) at one year (P<.05).
Parent training is effective to reduce the risk of overweight in preschool Latino children living in low-income households. The findings need to be examined in a larger sample of children.
美国的拉丁裔学龄前儿童肥胖风险很高。本研究的目的是在一年的时间内测量，基于社会学习理论的父母培训结合促进最佳营养和身体活动的循证干预是否会降低生活在低收入家庭的 2-4 岁拉丁裔儿童群体的 BMI z 分数上升趋势。
为 2-4 岁的低收入拉丁裔父母提供了 7 节每周课程和 2 节强化课程。一项随机对照试点研究评估了该干预措施的有效性，该干预措施将接受父母培训 (PT) 的 61 名儿童与等待名单 (WL) 组的 60 名儿童进行对比。有 40 名受试者未参加为期一年的随访评估，因此有 81 名受试者在基线和一年随访时都有测量值。为了调整差异辍学率和缺失观察值，使用包括相关自变量的精心构建的模型对缺失数据进行了插补。
在基线时，两组在家庭特征和儿童和父母的 BMI 类别方面没有显著的受试者差异。与对照组相比，干预组的儿童平均 BMI z 分数显著下降了.20（SE=.08），而对照组的儿童平均 BMI z 分数增加了.04（SE=.09），一年后（P<.05）。
父母培训对于降低生活在低收入家庭的拉丁裔学龄前儿童超重的风险是有效的。这些发现需要在更大的儿童样本中进行检验。
