. Author manuscript; available in PMC: 2022 Oct 18.

Published in final edited form as: J Pediatr. 2018 Jul 13;201:27–33.e4. doi: 10.1016/j.jpeds.2018.06.004

Table IV.

Unadjusted and adjusted^* longitudinal mixed models for the association between categories of HBW group/weight-for-age status and percentage breast milk (n = 209) and daily formula consumption (n = 133) between birth to 6 months

	Model 1 ß (95% CI)		Model 2^* ß (95% CI)	Model 3^* ß (95% CI)
Variable	Percentage breast milk	Daily formula consumption	Percentage breast milk	Percentage breast milk
HBW-high	−10.57 (−22.84, 1.70)	4.22 (−1.28, 9.72)	−8.29 (−20.72, 4.14)	−7.26 (−19.72, 5.20)
Age	−0.52 (−0.74, −0.30)^†	0.48 (0.29, 0.68)^†	−0.52 (−0.74, −0.30)^†	−0.75 (−1.10, −0.39)^†
HBW-high × age	−0.43 (−0.81, −.05)	−.09 (−0.39, 0.22)	−0.43 (−0.82, −.05)	−0.94 (−1.55, −0.34)^‡
Age²				.01 (−.00, .02)
HBW-high × age²				.03 (.00, .05)^‡
Model fit statistics
Deviance	10 036	4650	10 018	10 002
AIC	10 052	4666	10 051	10 038
BIC	10 092	4701	10 133	10 130

HBW-high, HBW infants with high weight-for-age.

Models are adjusted for mother’s age, prepregnancy BMI, gestational age, infant sex, race/ethnicity, and PIR.

^†

P < .001.

^‡

P < .05.