Table 3.

Results of nested multiple logistic regressions that evaluate the association between children’s sleep characteristics (weekdays or weekends) and body weight status.

	Model 1	Model 2	Model 3	Model 4	Model 5	Model 6
Sleep duration (weekdays) (h/day)	0.89 (0.79–0.99)*	0.88 (0.78–0.99)*	0.90 (0.80–1.02)	0.91 (0.80–1.02)	0.92 (0.81–1.04)	0.94 (0.83–1.07)
Sleep duration (weekends) (h/day)	0.89 (0.82–0.96)*	0.91 (0.84–0.98)*	0.91 (0.84–0.99)*	0.91 (0.84–0.98)*	0.91 (0.84–0.98)*	0.91 (0.84–0.98)*
Wake time < 07:00 (weekdays), yes/no	1.14 (0.90–1.43)	1.13 (0.90–1.42)	1.13 (0.89–1.42)	1.10 (0.87–1.39)	1.10 (0.87–1.39)	1.08 (0.86–1.37)
Bedtime < 22:00 (weekdays), yes/no	0.79 (0.63–1.01)	0.77 (0.61–0.99)*	0.77 (0.62–0.98)*	0.77 (0.62–0.98)*	0.76 (0.62–0.97)*	0.79 (0.62–1.00)*
Bedtime > 23:00 (weekdays), yes/no	1.48 (1.15–1.91)*	1.50 (1.16–1.96)*	1.44 (1.11–1.88)*	1.41 (1.08–1.85)*	1.38 (1.05–1.81)*	1.36 (1.04–1.78)*
Wake time < 07:00 (weekends), yes/no	1.97 (1.30–2.98)*	1.87 (1.22–2.84)*	1.85 (1.22–2.82)*	1.91 (1.25–2.91)*	1.94 (1.27–2.97)*	2.00 (1.30–3.06)*
Bedtime < 22:00 (weekends), yes/no	0.84 (0.75–1.41)	0.89 (0.77–1.49)	0.91 (0.79–1.52)	0.90 (0.78-1.41)	0.95 (0.85–1.71)	1.01 (0.75–1.39)
Bedtime > 23:00 (weekends), yes/no	1.23 (0.94–1.59)	1.22 (0.94–1.59)	1.19 (0.91–1.55)	1.19 (0.92–1.55)	1.17 (0.89–1.53)	1.14 (0.87–1.50)

Data presented as odds ratio (95% confidence interval). Model 1 = crude model, Model 2 = adjusted for age and sex, Model 3 = adjusted for variables in model 2 plus KIDMED score, Model 4 = adjusted for variables in model 3 plus physical activity status, Model 5 = adjusted for variables in model 4 plus having television in the room. Model 6 = adjusted for variables in model 5 plus having personal computer or tablet in the room. *P value < .05.