. 2017 Feb 1;13(1):53–62. doi: 10.1089/chi.2016.0103

Table 5.

Growth Curve Models Body–Mass Index (kg/m²) for Boys and Girls

	Boys			Girls
Predictors	Model 1 unconditional estimate (SE)	Model 2 estimate (SE)	Model 3 estimate (SE)	Model 1 unconditional estimate (SE)	Model 2 estimate (SE)	Model 3 estimate (SE)
Fixed effects
Intercept	20.79 (0.27)^***	20.79 (0.57)^***	20.49 (0.46)^***	21.29 (0.30)^***	19.93 (0.48)^***	20.34 (0.48)^***
Time	0.60 (0.06)^***	0.57 (0.08)^***	0.58 (0.07)^***	0.83 (0.06)^***	0.82 (0.08)^***	0.84 (0.08)^***
MVPA		−0.08 (0.03)^*	−0.09 (0.03)^**		−0.16 (0.05)^**	−0.16 (0.05)^**
Sedentary		0.04 (0.02)	0.02 (0.02)		−0.01 (0.02)	−0.02 (0.02)
Sedentary × time		−0.03 (0.01)^*	−0.03 (0.01)^*		^a	^a
Diet quality		0.01 (0.01)	−0.01 (0.01)		0.001 (0.01)	−0.001 (0.01)
Diet quality × time		−0.02 (0.01)^*	^a		^a	^a
Race
Black		0.29 (0.62)	0.98 (0.47)^*		2.31 (0.59)^***	1.19 (0.51)^*
Hispanic		1.39 (1.07)	1.72 (0.80)^*		−0.66 (0.85)	−0.21 (0.72)
Other		−0.15 (0.77)	0.19 (0.58)		0.65 (.69)	0.30 (0.58)
White		Reference	Reference		Reference	Reference
Parent<college graduate		−0.17 (0.56)	−0.26 (0.42)		1.07 (0.51)^*	0.77 (0.43)
Maturity offset			5.42 (0.35)^***			3.78 (0.06)^***
Variance components (random effects)
Level 1 within	0.75 (0.07)^***	0.71 (0.07)^***	0.71 (0.07)^***	0.65 (0.06)^***	0.65 (0.06)^***	0.65 (0.06)^***
Level 2 Intercept	21.30 (1.80)^***	20.49 (1.74)^***	10.92 (0.96)^***	22.74 (1.75)^***	20.94 (1.62)^***	14.52 (1.14)^***
Level 2 slope	0.53 (0.09)^***	0.53 (0.09)^***	0.56 (0.09)^***	0.71 (0.09)^***	0.70 (0.09)^***	0.70 (0.09)^***
Goodness of fit
Deviance	3480.2	3457.9	3287.0	4265.5	4229.8	4111.3
AIC	3492.2	3489.9	3321.0	4279.5	4259.8	4143.3
BIC	3495.6	3499.0	3330.6	4282.7	4265.7	4149.7

Predictors were centered and values reported are coefficients with standard errors in parentheses estimated using full maximum likelihood.

^{^*}

p < 0.05; ^**p < 0.01; ^***p < 0.001.

^{^a}

Nonsignificant interactions removed from model.