Table 2.
Multivariate linear regression analyses of sleep duration and obesity-related variables.
| Sleep Duration Time | ||||
|---|---|---|---|---|
| β | SE a | p | ||
| Both genders (n = 2795) Adjusted for model 1 | ||||
| BMI b (kg/m2) | −0.411 | 0.077 | <0.001 | |
| Waist Circumference (cm) | −0.900 | 0.202 | <0.001 | |
| Hip Circumference (cm) | −1.063 | 0.178 | <0.001 | |
| WHtR c | −0.004 | 0.001 | <0.001 | |
| Boys (n = 1440) Adjusted for model 2 | ||||
| BMI b (kg/m2) | −0.344 | 0.108 | 0.002 | |
| Waist Circumference (cm) | −1.098 | 0.300 | <0.001 | |
| Hip Circumference (cm) | −0.975 | 0.251 | <0.001 | |
| WHtR c | −0.005 | 0.002 | 0.009 | |
| Girls (n = 1355) Adjusted for model 2 | ||||
| BMI b (kg/m2) | −0.499 | 0.109 | <0.001 | |
| Waist Circumference (cm) | −0.695 | 0.264 | 0.006 | |
| Hip Circumference (cm) | −1.193 | 0.254 | <0.001 | |
| WHtR c | −0.003 | 0.002 | 0.022 | |
a SE, Standard Error; b BMI, body mass index; c WHtR, Waist-to-height ration; Model 1: adjusted for: age, gender, parents’ marriage status, parents’ highest education at college level, current smoking, current drinking, breakfast skipping, perceived sad/hopeless, watching television and physical activity; Model 2: adjusted for: age, parents’ marriage status, parents’ highest education at college level, current smoking, current drinking, breakfasts kipping, perceived sad/hopeless, watching television and physical activity.