Tracking of leisure-time physical activity during adolescence and young adulthood: a 10-year longitudinal study

Table 2

a. Multivariate model of change in global leisure-time physical and recreational activity from age 13 to 23 with linear (and quadratic) fixed effects
	Males		Females
	B	SE	B	SE
Physical activity	.	.	.	.
Intercept	2.628	0.082	2.101	0.072
Age-18.3	-0.1704	0.0127	-0.0945	0.0118
(Age-18.3)²	0.006	0.003	0.013	0.003
Recreational activity
Intercept	2.436	0.058	2.472	0.057
Age-18.3	-0.118	0.009	-0.090	0.0089
(Age-18.3)2	0.010	0.003	0.014	0.002
b. Random variance components from multivariate model of change in global leisure-time physical and recreational activity from age 13 to 23 (correlations in plain style, covariances in bold).
	Males				Females
.	1.	2.	3.	4.	1.	2.	3.	4.
Between persons
1. Intercept recreational activity	0.89	.	.	.	0.72	.	.	.
2. Intercept physical activity	0.57	1.86	.	.	0.49	1.05	.	.
3. Slope recreational activity	0.01	0.42	0.01	.	0.03	0.24	0.01	.-
4. Slope physical activity	0.19	0.06	0.78	0.02	0.04	-0.16	0.30	0.02
Within persons
1. Intercept recreational activity	1.32	-	-	-	1.21	-	-	-
2. Intercept physical activity	0.17	2.49	-	-	0.14	2.06	-	-

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