Purtell Kelly M, Gershoff Elizabeth T
The Ohio State University, Columbus, OH, USA
The University of Texas at Austin, Austin, TX, USA.
Clin Pediatr (Phila). 2015 Aug;54(9):871-7. doi: 10.1177/0009922814561742. Epub 2014 Dec 5.
The objective of this study is to examine the associations between fast food consumption and the academic growth of 8544 fifth-grade children in reading, math, and science.
This study uses direct assessments of academic achievement and child-reported fast food consumption from a nationally representative sample of kindergartners followed through eighth grade.
More than two thirds of the sample reported some fast food consumption; 20% reported consuming at least 4 fast food meals in the prior week. Fast food consumption during fifth grade predicted lower levels of academic achievement in all 3 subjects in eighth grade, even when fifth grade academic scores and numerous potential confounding variables, including socioeconomic indicators, physical activity, and TV watching, were controlled for in the models.
These results provide initial evidence that high levels of fast food consumption are predictive of slower growth in academic skills in a nationally representative sample of children.
本研究的目的是检验8544名五年级儿童的快餐消费与他们在阅读、数学和科学方面学业成绩增长之间的关联。
本研究使用了对学业成绩的直接评估以及来自全国代表性的幼儿园儿童样本（跟踪至八年级）自我报告的快餐消费情况。
超过三分之二的样本报告有过一些快餐消费；20%的样本报告在前一周至少食用了4次快餐。五年级时的快餐消费预示着八年级时所有这三门学科的学业成绩较低，即使在模型中控制了五年级的学业成绩以及众多潜在的混杂变量，包括社会经济指标、体育活动和看电视时间等。
这些结果提供了初步证据，表明在全国有代表性的儿童样本中，高频率的快餐消费预示着学业技能增长较慢。
