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Sleep duration rather than sleep timing is associated with obesity in adolescents.
Sleep Medicine ( IF 3.8 ) Pub Date : 2020-01-11 , DOI: 10.1016/j.sleep.2019.12.014
Jun-Sang Sunwoo 1 , Kwang Ik Yang 2 , Jee Hyun Kim 3 , Dae Lim Koo 4 , Daeyoung Kim 5 , Seung Bong Hong 6
Affiliation  

OBJECTIVE In this study, we investigated differences in sleep patterns between obese and non-obese adolescents, and determined which sleep-related parameters were associated with a risk of adolescent obesity. METHODS In this cross-sectional study, we evaluated 22,906 adolescents between 12 and 18 years of age (mean 15.2 ± 1.7 years; male 50.9%). Self-report questionnaires were used to assess body mass index (BMI) and sleep habits. Obesity was defined as a BMI-for-age ≥ 95th percentile. Weekend catch-up sleep (CUS) duration was calculated as the sleep duration on free days minus sleep duration on school days. We estimated mid-sleep time on free days corrected for oversleep on free days (MSFsc) and social jet lag. Then, we performed multivariate analysis for adolescent obesity and BMI, respectively. RESULTS The prevalence of obesity was 6.0%. The average sleep duration (P = 0.017) and weekend CUS duration (P < 0.001) of obese adolescents were shorter than those of non-obese adolescents. However, there was no significant difference in MSFsc or social jet lag by the obesity status. After adjustment, obesity was significantly associated with short average sleep duration (odds ratio [OR] 0.91, 95% confidence interval [CI] 0.86-0.96) and short weekend CUS duration (OR 0.92, 95% CI 0.89-0.95). Similarly, BMI was inversely correlated with average sleep duration (B = -0.15, 95% CI -0.19 to -0.11) and weekend CUS duration (B = -0.09, 95% CI -0.11 to -0.06). CONCLUSIONS Our observations suggest that short sleep duration, rather than late MSFsc or social jet lag, was associated with adolescent obesity.

中文翻译:

睡眠时间而不是睡眠时间与青少年肥胖有关。

目的在这项研究中,我们调查了肥胖和非肥胖青少年之间睡眠方式的差异,并确定了哪些与睡眠有关的参数与青少年肥胖风险相关。方法在这项横断面研究中,我们评估了22,906名12至18岁(平均15.2±1.7岁;男性50.9%)的青少年。自我报告调查表用于评估体重指数(BMI)和睡眠习惯。肥胖被定义为年龄≥95%的BMI。周末追赶睡眠(CUS)持续时间的计算方法是:空闲日的睡眠时间减去上课日的睡眠时间。我们估计了空闲日的半夜睡眠时间,该时间已校正为空闲日的过度睡眠(MSFsc)和社交时差。然后,我们分别对青少年肥胖和BMI进行了多变量分析。结果肥胖的患病率为6.0%。肥胖青少年的平均睡眠时间(P = 0.017)和周末CUS持续时间(P <0.001)短于非肥胖青少年。但是,肥胖状况在MSFsc或社交时差方面没有显着差异。调整后,肥胖与平均睡眠时间短(几率[OR] 0.91,95%置信区间[CI] 0.86-0.96)和周末CUS时间短(OR 0.92,95%CI 0.89-0.95)显着相关。同样,BMI与平均睡眠时间(B = -0.15,95%CI -0.19至-0.11)和周末CUS时间(B = -0.09,95%CI -0.11至-0.06)呈负相关。结论我们的观察表明,睡眠时间短而不是青少年MSFsc或社交时差反应与青少年肥胖有关。001)的肥胖青少年比非肥胖的青少年短。但是,肥胖状况在MSFsc或社交时差方面没有显着差异。调整后,肥胖与平均睡眠时间短(几率[OR] 0.91,95%置信区间[CI] 0.86-0.96)和周末CUS时间短(OR 0.92,95%CI 0.89-0.95)显着相关。同样,BMI与平均睡眠时间(B = -0.15,95%CI -0.19至-0.11)和周末CUS时间(B = -0.09,95%CI -0.11至-0.06)呈负相关。结论我们的观察表明,睡眠时间短而不是青少年MSFsc或社交时差反应与青少年肥胖有关。001)的肥胖青少年比非肥胖的青少年短。但是,肥胖状况在MSFsc或社交时差方面没有显着差异。调整后,肥胖与平均睡眠时间短(几率[OR] 0.91,95%置信区间[CI] 0.86-0.96)和周末CUS时间短(OR 0.92,95%CI 0.89-0.95)显着相关。同样,BMI与平均睡眠时间(B = -0.15,95%CI -0.19至-0.11)和周末CUS时间(B = -0.09,95%CI -0.11至-0.06)呈负相关。结论我们的观察表明,睡眠时间短而不是青少年MSFsc或社交时差反应与青少年肥胖有关。肥胖与平均睡眠时间短(比值比[OR] 0.91,95%置信区间[CI] 0.86-0.96)和周末CUS时间短(OR 0.92,95%CI 0.89-0.95)显着相关。同样,BMI与平均睡眠时间(B = -0.15,95%CI -0.19至-0.11)和周末CUS时间(B = -0.09,95%CI -0.11至-0.06)呈负相关。结论我们的观察表明,睡眠时间短而不是青少年MSFsc或社交时差反应与青少年肥胖有关。肥胖与平均睡眠时间短(比值比[OR] 0.91,95%置信区间[CI] 0.86-0.96)和周末CUS时间短(OR 0.92,95%CI 0.89-0.95)显着相关。同样,BMI与平均睡眠时间(B = -0.15,95%CI -0.19至-0.11)和周末CUS时间(B = -0.09,95%CI -0.11至-0.06)呈负相关。结论我们的观察表明,睡眠时间短而不是青少年MSFsc或社交时差反应与青少年肥胖有关。06)。结论我们的观察表明,睡眠时间短而不是青少年MSFsc或社交时差反应与青少年肥胖有关。06)。结论我们的观察表明,睡眠时间短而不是青少年MSFsc或社交时差反应与青少年肥胖有关。
更新日期:2020-01-13
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