Krueger Patrick M, Reither Eric N, Peppard Paul E, Burger Andrew E, Hale Lauren
Department of Health and Behavioral Sciences, University of Colorado Denver and Population Program, Institute of Behavioral Sciences, University of Colorado, Boulder, CO, USA.
Department of Sociology and the Yun Kim Population Research Laboratory, Utah State University, Logan, UT, USA.
J Sleep Res. 2015 Dec;24(6):629-38. doi: 10.1111/jsr.12327. Epub 2015 Jul 27.
Short sleep duration is associated with excess body mass among adolescents and young adults. The mechanisms theorized to drive that association suggest that persistent exposure to short sleep should be associated with greater accumulations of body mass. We use prospective cohort data from four waves of the National Longitudinal Study of Adolescent to Adult Health (1994-2009; n = 14 800) to examine associations between cumulative exposure to short sleep throughout adolescence and early adulthood and obesity and elevated waist circumference outcomes. We compare several clinical and distribution-based standards of short sleep to assess which measures are associated most strongly with body mass. Cumulative exposure to short sleep exhibits dose-response associations with obesity and elevated waist circumference. Relative to respondents with no instances of short sleep, those who slept -0.50 standard deviations or less than the age and sex-specific average sleep hours in all four waves had 1.45 [95% confidence interval (CI): 1.03, 2.04] times the odds of being obese and 1.45 (95% CI: 1.02, 2.06) times the odds of having an elevated waist circumference. Our findings suggest that cumulative exposure to short sleep during adolescence and young adulthood may play an important role in the etiology of obesity and elevated waist circumference during this important developmental period.
睡眠时间短与青少年和青年的体重超标有关。理论上认为导致这种关联的机制表明，持续暴露于短睡眠状态应与更多的体重积累有关。我们使用来自全国青少年健康纵向研究（1994 - 2009年；n = 14800）四轮调查的前瞻性队列数据，来研究整个青春期和成年早期累积暴露于短睡眠与肥胖及腰围增加之间的关联。我们比较了几种基于临床和分布的短睡眠标准，以评估哪些指标与体重的关联最为密切。累积暴露于短睡眠与肥胖及腰围增加呈现剂量反应关系。与没有短睡眠情况的受访者相比，在所有四轮调查中睡眠时间比年龄和性别特异性平均睡眠时间少0.50个标准差或更少的受访者，肥胖几率是其1.45倍[95%置信区间（CI）：1.03，2.04]，腰围增加的几率是其1.45倍（95%CI：1.02，2.06）。我们的研究结果表明，在青春期和成年早期累积暴露于短睡眠可能在这一重要发育阶段的肥胖和腰围增加的病因学中起重要作用。
