Trajectories of Change in Obesity among Tehranian Families: Multilevel Latent Growth Curve Modeling

Table 3

Parameter estimates and asymptotic standard errors of multilevel latent linear growth curve model for anthropometric measurements.

Growth factor	BMI		WC		ABSI
	Estimate ± SE		Estimate ± SE		Estimate ± SE
Means
Intercept	22.34 ± 0.19	<0.001	83.93 ± 0.47	<0.001	0.79 ± 0.002	<0.001
Linear	0.85 ± 0.04	<0.001	5.41 ± 0.14	<0.001	0.02 ± 0.001	<0.001
Regression weight
Sex
Intercept	1.72 ± 0.11	<0.001	−0.64 ± 0.28	<0.001	−0.014 ± 0.001	<0.001
Linear	0.02 ± 0.02	0.435	−1.20 ± 0.08	<0.001	−0.006 ± 0.001	<0.001
Age
Intercept	0.64 ± 0.01	<0.001	0.63 ± 0.01	<0.001	0.31 ± 0.01	<0.001
Linear	0.55 ± 0.01	<0.001	0.53 ± 0.01	<0.001	0.47 ± 0.01	<0.001
Individual covariance
Intercept
Linear	−0.61 ± 0.07	<0.001	−6.58 ± 0.51	<0.001	0.001 ± 0.001	<0.001
Individual residual variances
Intercept	16.82 ± 0.48	<0.001	98.63 ± 2.41	<0.001	0.001 ± 0.001	<0.001
Linear	0.49 ± 0.03	<0.001	3.50 ± 0.18	<0.001	0.001 ± 0.001	<0.001
Family variance
Intercept	2.51 ± 0.32	<0.001	13.12 ± 1.92	<0.001	0.001 ± 0.001	0.006
Linear	0.07 ± 0.01	<0.001	0.65 ± 0.12	<0.001	0.001 ± 0.001	0.329
Family covariance
Intercept
Linear	0.23 ± 0.05	<0.001	1.14 ± 0.35	<0.001	0.001 ± 0.001	0.96
Individual -square range
Phase 1	0.941		0.905		0.573
Phase 2	0.924		0.884		0.583
Phase 3	0.921		0.867		0.606
Phase 4	0.918		0.847		0.583

ABSI, a body shape index; BMI, body mass index; WC, waist circumference.