Impacts of classifying New York City students as overweight
Impacts of classifying New York City students as overweight
复制标题
DOI：
10.1073/pnas.1518443113
复制
发表时间：
2016-03-29
影响因子：
11.1
通讯作者：
Schwartz, Amy Ellen
中科院分区：
文献类型：
--
作者：
Almond, Douglas;Lee, Ajin;Schwartz, Amy Ellen
美国学校越来越多地在年度健康报告卡上向学生和家长报告身体质量指数（BMI）。“我们获得了2007-2012年纽约市公立学校学生的3,592,026份BMI报告。我们关注的是那些BMI接近超重年龄界限的女学生。超重的学生被告知，他们的BMI“福尔斯以外的健康体重”，他们应该审查他们的BMI与卫生保健提供者。使用回归不连续设计，我们将那些被归类为超重但接近超重临界值的人与那些BMI勉强获得“健康”BMI分组的人进行比较。我们发现超重分类对女孩随后的BMI和体重的影响很小。虽然BMI报告卡的目的可能是减缓体重较重学生的BMI增长，但在下一学年评估时，BMI和体重相对于健康同龄人并没有下降。我们的研究结果表明，对于BMI接近超重临界值的女孩来说，超重是离散的分类，而不是纽约市BMI报告的总体影响。
US schools increasingly report body mass index (BMI) to students and their parents in annual fitness "report cards." We obtained 3,592,026 BMI reports for New York City public school students for 2007-2012. We focus on female students whose BMI puts them close to their age-specific cutoff for categorization as overweight. Overweight students are notified that their BMI "falls outside a healthy weight" and they should review their BMI with a health care provider. Using a regression discontinuity design, we compare those classified as overweight but near to the overweight cutoff to those whose BMI narrowly earned them a "healthy" BMI grouping. We find that overweight categorization generates small impacts on girls' subsequent BMI and weight. Whereas presumably an intent of BMI report cards was to slow BMI growth among heavier students, BMIs and weights did not decline relative to healthy peers when assessed the following academic year. Our results speak to the discrete categorization as overweight for girls with BMIs near the overweight cutoff, not to the overall effect of BMI reporting in New York City.