Composition of weekly physical activity in adolescents by level of physical activity

BMC Public Health

Table 2 The differences in mean steps/day between school and weekend days by level of physical activity in girls and boys

Gender	Level of physical activity	n	School days		Weekend		t	p	d
Gender	Level of physical activity	n	M	SD	M	SD	t	p	d
Boys	lower	230	7707	1669	5821	2624	9.14	< 0.001	0.575^a
	middle	248	11,280	1663	9444	3346	6.57	< 0.001	0.398^a
	higher	172	15,935	2600	15,169	5050	1.74	0.843	0.127
Girls	lower	375	7717	1543	6040	2361	11.47	< 0.001	0.565^a
	middle	422	11,216	1542	9918	2902	7.13	< 0.001	0.331^a
	higher	152	15,600	2531	14,485	4026	2.92	0.004	0.226^a

M Mean, SD Standard deviation, t Dependent sample test, p Level of significance, d – Cohen’s effect size coefficient, ^asmall effect size, lower – mean < 9000 steps/day, middle – mean 9000–12,999 steps/day, higher – mean ≥ 13,000 steps/day

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