Table 3.

Stepwise Regression with Non-school Physical Activity as Dependent Variable and Co-variates

	Dependent	Variable	B	SE	p	Partial R2	Total R2
Female
Model 1	Non-school MVPA	% BF	−0.86	0.29	0.004	0.053	0.134
		Family support	7.93	2.41	0.001	0.081
Model 2	Non-school Total	Maturity offset	−96.37	34.98	0.006	0.048	0.116
		Family support	68.33	21.89	0.002	0.069
Male
Model 1	Non-school MVPA	% BF	−0.74	0.32	0.02	0.029	0.115
		Centered age	−23.35	10.59	0.03	0.030
		Family support	7.25	3.25	0.03	0.055
Model 2	Non-school Total	% BF	−4.53	2.37	0.06	0.023	0.103
		Centered age	−161.68	79.22	0.04	0.023
		Family support	57.79	24.29	0.019	0.058

Note. % BF = percentage of body fat. In all models only significant co-variates at p ≤ 0.05 were retained. Female Models considered % BF, maturation offset, Family support x % BF. Male Models considered % BF, centered age, Family support x % BF.