Arizona Respiratory Center, College of Medicine, University of Arizona, Tucson, AZ 85724, USA.
J Clin Sleep Med. 2011 Aug 15;7(4):337-42. doi: 10.5664/JCSM.1182.
To investigate the associations between sleep duration and obesity incidence and risk factors among pre-adolescents and adolescents.
Cross-sectional study of a community based cohort
The Tucson Children's Assessment of Sleep Apnea follow-up study (TuCASA) cohort.
319 Caucasian and Hispanics between 10-17 years.
Parent-reported sleep duration and BMI z-score.
Surveys of electronic screen time, dietary and caffeine intake, exercise and sleep habits by parents, and anthropometric measures.
Parent-reported total sleep time (TST) was inversely associated with BMI z-score, but not significantly correlated with any of the examined nutritional variables or exercise components. Hispanic ethnicity was associated with significantly lower parent-reported TST and higher BMI z-score. Parent-reported TST was inversely related to electronic screen time and caffeine use, but these findings were differentially related to age. Caffeine consumption was associated with decreasing parent-reported TST primarily in older adolescents. Electronic screen time was associated with lower parent-reported TST in younger adolescents.
Hispanic ethnicity and parental reports of TST were found to be the most closely associated with BMI z-score. Decreased TST and increased caffeine intake and screen time may result in higher obesity risk in the adolescent population.
研究青少年前和青少年时期的睡眠时间与肥胖发生率和风险因素之间的关系。
基于社区的队列的横断面研究。
图森儿童睡眠呼吸暂停随访研究（TuCASA）队列。
319 名白人和西班牙裔，年龄在 10-17 岁之间。
父母报告的睡眠时间和 BMI z 评分。
通过父母对电子屏幕时间、饮食和咖啡因摄入、运动和睡眠习惯进行调查，以及人体测量学测量。
父母报告的总睡眠时间（TST）与 BMI z 评分呈负相关，但与任何检查的营养变量或运动成分均无显著相关性。西班牙裔族群与父母报告的 TST 明显较低和 BMI z 评分较高相关。父母报告的 TST 与电子屏幕时间和咖啡因使用呈负相关，但这些发现与年龄有关。咖啡因摄入与年龄较大的青少年中父母报告的 TST 减少有关。电子屏幕时间与年龄较小的青少年中父母报告的 TST 较低有关。
发现西班牙裔族群和父母报告的 TST 与 BMI z 评分最密切相关。TST 减少以及咖啡因摄入和屏幕时间增加可能会导致青少年人群肥胖风险增加。
