Stability and change in screen-based sedentary behaviours and associated factors among Norwegian children in the transition between childhood and adolescence

Table 1 Sedentary behaviors, mean values and proportions at baseline, 1 and 2 year follow-up among Norwegian children

		BL		T1		T2
		Mean	SD	Mean	SD	Mean	SD
TV/DVD use	Female	11.04	6.52	12.36	6.62	13.45	6.86
	Male	11.90	6.77	12.94	7.25	13.28	7.37
	Total	11.50	6.66	12.66	6.96	13.36	7.13
Computer/electronic game use	Female	7.31*	5.81	8.00*	5.55	9.88^#	6.82
	Male	9.80*	6.63	10.19*	6.84	11.01^#	7.37
	Total	8.61	6.37	9.15	6.36	10.47	7.14
Total screen time	Female	18.44*	10.91	20.34*	9.88	23.31	11.34
	Male	21.68*	11.83	23.14*	12.05	24.30	12.73
	Total	20.15	11.51	21.81	11.15	23.83	12.10
		%		%		%
Total screen time > 2 hrs/day	Female	50.7		67.1		72.7
	Male	65.9		73.9		73.4
	Total	58.7		70.6		73.1

*, ^#statistically significant difference between boys and girls, *: p < 0.001, ^#: p < 0.05
N = 419 for girls and 466 for boys and varies slightly between variables
Statistically significant changes between BL and T2 for all variables

ISSN: 1471-2458