Table 2

Daily time and MET^* × time on MVPA^† at baseline^‡, 3 months and 7 months

	Sample (n)	Baseline^§		3 months^§		p Value^¶	7 months^§		p Value^¶
	Sample (n)	Mean	SE	Mean	SE	p Value^¶	Mean	SE	p Value^¶
Total MVPA, min/day
Control	295	196.7	11.1	183.3	12.6		171.3	11.4
Intervention	323	190.1	10.8	179.6	12.4	0.83	171.6	11.2	0.94
Total MVPA, MET × min/day
Control	295	998.6	58.4	957.6	90.6		874.3	73.8
Intervention	323	967.8	57.0	917.0	89.9	0.66	869.2	73.0	0.88
MVPA in school, min/day
Control	321	95.6	4.8	105.5	8.7		88.8	9.4
Intervention	337	92.6	4.7	99.2	8.7	0.52	92.8	9.3	0.77
MVPA in school, MET × min/day
Control	321	513.9	26.0	593.2	67.6		488.0	62.2
Intervention	337	498.9	25.4	533.2	67.4	0.38	497.8	61.9	0.99
MVPA out school, min/day
Control	314	108.7	10.0	90.8	5.5		89.5	7.8
Intervention	329	103.2	9.9	91.1	5.4	0.97	88.9	7.8	0.94
MVPA out school, MET × min/day
Control	314	549.4	53.3	462.1	36.1		449.4	38.7
Intervention	329	514.6	53.0	456.0	35.6	0.91	438.9	38.4	0.81
Active commuting to school, MET × min/day
Control	320	131.6	13.1	115.1	17.2		120.6	11.4
Intervention	341	135.4	13.0	118.5	17.2	0.82	116.4	11.3	0.79

↵* MET denotes 1 kcal × kg body weight⁻¹ × h⁻¹.
↵† MVPA denotes moderate-to-vigorous physical activity, that is, activities with an MET ≥3. Total MVPA is the sum of in-school and out-of-school MVPA and active commuting to school.
↵‡ Comparison between control group and intervention group in each variable at baseline is not significant.
↵§ Data were adjusted for age, gender and body mass index at baseline.
↵¶ Comparison between intervention and control groups was adjusted for age, gender, body mass index at baseline, interaction between measurement time and groups, and cluster effect in randomisation pair, school and class level, within-subject correlation using PROC GLIMMIX procedure in SAS V.9.2.