Table 2. Associations between sleep duration and overweight/obesity among adolecents (N= 66,817).
| Models | Sleep Duration, hours/day | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| <5.0 | 5.0–6.9 | 7.0–8.9 | ≥9.0 | |||||||||
| Cases/controls | OR | 95% CI | Cases/controls | OR | 95% CI | Cases/controls | OR | 95% CI | Cases/controls | OR | 95% CI | |
| Overweight | 179/772 | 34,98/21,085 | 6,430/32,398 | 559/1,896 | ||||||||
| Model 1 | 1.27 | 1.07–1.51 | 1.04 | 0.99–1.09 | 1.00 | Referent | 1.28 | 1.15–1.42 | ||||
| Model 2 | 1.25 | 1.04–1.49 | 1.05 | 1.00–1.10 | 1.00 | Referent | 1.28 | 1.15–1.42 | ||||
| Model 3 | 1.26 | 1.05–1.51 | 1.06 | 1.00–1.11 | 1.00 | Referent | 1.27 | 1.14–1.42 | ||||
| Obesity | 94/857 | 1,602/22,981 | 3,081/35,747 | 302/2,153 | ||||||||
| Model 1 | 1.26 | 1.01–1.59 | 0.91 | 0.86–0.98 | 1.00 | Referent | 1.45 | 1.27–1.65 | ||||
| Model 2 | 1.21 | 0.95–1.54 | 0.93 | 0.87–1.00 | 1.00 | Referent | 1.42 | 1.24–1.63 | ||||
| Model 3 | 1.24 | 0.97–1.57 | 0.94 | 0.87–1.01 | 1.00 | Referent | 1.42 | 1.24–1.63 | ||||
Abrreviations: OR: Odds Ratio; 95% CI: 95% Confidence Interval.
Notes: Cases: the number of participants who were overweight or obese; controls: the number of participants who were not overweight or obese.
Model 1: adjusted for age, gender, coming from single family, parental education and parental smoking.
Model 2: adjusted for covariates in model 1 + physical activity, internet and vedio games, homework, tobacco and alcohol use.
Model 3: adjusted for covariates in model 2 + depression and anxiety indicators.