Table 4.

Least squares means and standard error of anthropometric variables and body fat at age 13–14 years according to weight gain status

	Non-RWG	RWG	p value for ANCOVA
Boys
BMI	18.2 ± 0.4	19.7 ± 0.4	< 0.01
WC	66.0 ± 1.1	70.3 ± 1.2	< 0.01
Fat mass index	2.4 ± 0.2	3.1 ± 0.2	< 0.01
Body fat percentage	12.9 ± 0.7	15.2 ± 0.8	< 0.01
Girls
BMI	19.8 ± 0.4	20.8 ± 0.4	0.01
WC	68.3 ± 0.9	70.5 ± 1.0	0.02
Fat mass index	4.7 ± 0.2	5.3 ± 0.2	0.01
Body fat percentage	22.9 ± 0.7	24.5 ± 0.7	0.03

BMI body mass index, WC waist circumference, RWG rapid weight gain, ANCOVA analysis of covariance

Adjusted for gestational age and birthweight for gestational age categories in boys

Adjusted for gestational age, pubic hair appearance, and birthweight for gestational age categories in girls