Table 2.

Multivariable-adjusted estimates of adiposity measures at 3 years of age according to type of infant feeding during 6 months, among 884 mother-child pairs in Project Viva

	BMI z score (N = 884)		SS + TR (N = 843)		BMI >95th percentile1 (N = 713)
	β	95% CI	β	95% CI	β	95% CI
Model 1: adjusted for child’s age and sex
Never breastfed	ref (0.0)	ref	ref (0.0)	ref	ref (1.00)	ref
Any breastfeeding for less than 6 months	0.03	−0.22, 0.27	−0.56	−1.53, 0.40	0.80	0.39, 1.67
Any breastfeeding for 6 months	−0.31	0.57, −0.05	−1.68	−2.67, −0.68	0.61	0.28, 1.33
Full breastfeeding for 6 months	−0.27	0.53, −0.01	−1.61	−2.62, −0.59	0.14	0.04, 0.41
Model 2: model 1 + mother’s educational level, race/ethnicity, smoking status during pregnancy, BMI, and pregnancy weight gain and birth weight adjusted for gestational age
Never breastfed	ref (0.0)	ref	ref (0.0)	ref	ref (1.00)	ref
Any breastfeeding for less than 6 months	0.08	−0.16, 0.32	−0.33	−1.30, 0.63	0.90	0.40, 2.03
Any breastfeeding for 6 months	−0.20	−0.46, 0.05	−1.50	−2.52, −0.48	0.88	0.37, 2.10
Full breastfeeding for 6 months	−0.17	−0.43, 0.09	−1.48	−2.52, −0.44	0.21	0.07, 0.68
Model 3: model 2 + change in infant weight-for-age z score between birth and 6 months
Never breastfed	ref (0.0)	ref	ref (0.0)	ref	ref (1.00)	ref
Any breastfeeding for less than 6 months	0.05	−0.17, 0.27	−0.32	−1.27, 0.62	0.85	0.33, 2.18
Any breastfeeding for 6 months	−0.06	−0.29, 0.17	−1.18	−2.18, −0.18	1.44	0.53, 3.96
Full breastfeeding for 6 months	−0.03	−0.27, 0.20	−1.16	−2.18, −0.14	0.29	0.08, 1.05
Change in infant weight-for-age z score	0.44	0.38, 0.51	0.89	0.60, 1.17	4.30	3.02, 6.14

¹The odds on which the odds ratios are based, is a comparison between obese and normal weight children, overweight children were not included.

BMI = Body Mass Index; SS + TR = Sum of subscapular and triceps skinfold thicknesses