The effect of family and friend support on physical activity through adolescence: a longitudinal study

Table 4 Mixed multivariate linear regression models of MVPA and MVPA- PM Weekday for boys and girls combined as predicted by family support and friend support subscales

	Effect	β	SE	P-Value
MVPA	Intercept	3.943	0.271	<0.001
	Maturity Offset	−0.292	0.048	<0.001
	Maturity Offset* Maturity Offset	0.029	0.009	<0.001
	Sex (ref = girl)	0.819	0.126	<0.001
	Family Encourage	0.119	0.041	0.004
	Family Watch	0.177	0.046	0.001
	Friend Do	0.309	0.041	<0.001
	Mother’s Ed	0.381	0.193	0.049
MVPA-	Intercept	1.945	0.263	<0.001
PM Weekday	Maturity Offset	−0.219	0.050	<0.001
	Maturity Offset* Maturity Offset	0.021	0.009	0.019
	Sex (ref = girl)	0.435	0.123	<0.001
	Family Do	0.078	0.045	0.085
	Family Watch	0.207	0.048	<0.001
	Friend Do	0.377	0.042	<0.001
	Mother’s Ed	0.450	0.192	0.020

Note. β, regression parameter estimate; MVPA, moderate through vigorous-intensity PA
Note. Box-Cox transformed MVPA minutes used for inferential analyses. N = 401 (207 girls, 194 boys) participants with ≥ 2 assessments were used for modeling (979 records)

ISSN: 1479-5868