Health Behavior Research Group, Department of Psychology, Texas A&M University, USA.
Clin Psychol Rev. 2013 Mar;33(2):253-62. doi: 10.1016/j.cpr.2012.12.001. Epub 2012 Dec 20.
Pediatric obesity has reached epidemic proportions over the last two decades; however little research has focused on the behavioral mechanisms that may contribute to the rise of obesity in youth and adolescents. Impulsivity has been examined as a mechanism underlying the displacement of physical activity and the increase in food consumption, however this research is limited. The present meta-analysis aimed to address mixed findings of previous research by determining a relative effect of impulsivity on pediatric obesity. A total of 23 articles met the inclusion criteria for the present meta-analysis for a total sample size of 3898 participants (k=27) aged 2-21years (M=10.99). Using the statistical software, Comprehensive Meta-Analysis, version 2.0-Hedges' g was computed to estimate effect size. Results revealed a moderate effect size, such that impulsivity was greater among overweight/obese children, relative to healthy weight children (g=0.406). Significant moderating effects were found for the type of measure used (g=0.426) and the dimension of impulsivity examined (g=0.402). The current study emphasizes the need for further research on the role of impulsivity in pediatric obesity as additional findings may aid in the enhancement of future prevention and intervention weight management programs.
在过去的二十年中，儿科肥胖已达到流行程度；然而，很少有研究关注可能导致青少年肥胖的行为机制。冲动性已被研究为替代身体活动和增加食物消耗的机制，但这项研究是有限的。本荟萃分析旨在通过确定冲动性对儿科肥胖的相对影响来解决以前研究结果的差异。共有 23 篇文章符合本荟萃分析的纳入标准，共有 3898 名参与者（k=27），年龄在 2-21 岁之间（M=10.99）。使用统计软件 Comprehensive Meta-Analysis，version 2.0-Hedges' g 计算效应大小。结果表明，冲动性在超重/肥胖儿童中比在健康体重儿童中更高，具有中等效应大小（g=0.406）。使用的测量类型（g=0.426）和所检查的冲动性维度（g=0.402）存在显著的调节作用。本研究强调需要进一步研究冲动性在儿科肥胖中的作用，因为更多的发现可能有助于增强未来预防和干预体重管理计划。
