Al-Hazzaa Hazzaa M
Pediatric Exercise Physiology Research Laboratory, College of Education and.
Ann Hum Biol. 2014 Mar-Apr;41(2):111-7. doi: 10.3109/03014460.2013.833291. Epub 2013 Oct 7.
Numerous studies have shown significant associations between short sleep duration and overall or abdominal obesity. However, no study has reported on the joint association of body mass index (BMI) and waist-to-height ratio (WHtR) with sleep duration in adolescents.
To examine the joint associations of BMI and WHtR with sleep duration among Saudi adolescents.
A school-based cross-sectional study was conducted involving 2852 secondary-school students (51.7% females) aged 15-19 years, randomly selected using a multistage stratified cluster sampling. Self-reported sleep duration was assessed and BMI was classified into high and low categories according to the IOTF classification, whereas WHtR categories were based on above and below 0.5.
The low BMI-low WHtR category had the longest mean sleep duration (7.27 hours/day), whereas the high BMI-high WHtR group had the shortest sleep duration (7.02 hours/day; p = 0.003) (aOR = 0.832, 95% CI = 0.698-0.992, p = 0.040). In addition, high BMI-low WHtR or low BMI-high WHtR groups didn't significantly associate with reduced sleep duration among adolescents.
The joint association of high BMI-high WHtR increases adolescent's risk of having reduced sleep duration. Future research should seek to confirm such findings and provide an explanation for this association.
众多研究表明，短睡眠时间与总体肥胖或腹部肥胖之间存在显著关联。然而，尚无研究报告青少年的体重指数（BMI）和腰高比（WHtR）与睡眠时间的联合关联。
研究沙特青少年中BMI和WHtR与睡眠时间的联合关联。
开展了一项基于学校的横断面研究，纳入2852名年龄在15至19岁的中学生（51.7%为女性），采用多阶段分层整群抽样随机选取。评估自我报告的睡眠时间，根据国际肥胖工作组（IOTF）分类将BMI分为高和低类别，而WHtR类别基于0.5上下划分。
低BMI - 低WHtR类别平均睡眠时间最长（7.27小时/天），而高BMI - 高WHtR组睡眠时间最短（7.02小时/天；p = 0.003）（调整后比值比[aOR] = 0.832，95%置信区间[CI] = 0.698 - 0.992，p = 0.040）。此外，高BMI - 低WHtR或低BMI - 高WHtR组与青少年睡眠时间缩短无显著关联。
高BMI - 高WHtR的联合关联增加了青少年睡眠时间缩短的风险。未来研究应设法证实此类发现并对此关联作出解释。
