Table 2. Multivariate analysis of factors that affect nighttime sleep duration (TST) during weekdays .

Factors	Adjusted effects in hours	Effects in minutes	P-value	95% CI
Working mother	-0.12	-7.2	0.005	(-0.20, -0.03)
Sharing bedroom with parents	0.31	18.1	<0.001	(0.22, 0.40)
Inadequate sleep	-0.20	-12.0	0.007	(-0.34, -0.05)
Nightmare	-0.06	-3.6	<0.001	(-0.09, -0.03)
Sleepiness in day time	-0.001	-0.06	0.9	(-0.02, 0.02)
Having difficulty in completing tasks (poor concentration)	0.38	22.8	0.04	(0.002, 0.77)
Failing in grades	-0.17	-10.2	0.009	(-0.30, -0.04)
Overweight	0.02	1.2	<0.001	(0.01, 0.02)
Screen time	-0.006	-0.36	0.57	(-0.02, 0.01)
Physically inactive	0.03	1.8	0.06	(-0.002, 0.06)
Uses laptop/T.V after 8.00 pm	0.05	3.0	0.02	(0.02, 0.07)