Table 2.

Infant measures

	Baseline	21 days after enrollment	Discharge	Post-discharge
Change in infant weight (z-score)		X		X*
Amount of human milk/formula supplementation	X		X
Frequency of breastfeeding	X		X	X*
Breastfeeding rate	X		X	X*
Length of stay			X
Weight gain velocity			X
Major morbidities: Nosocomial infection, necrotizing enterocolitis, intraventricular hemorrhage, retinopathy of prematurity, and adverse events.			X
Hospital readmission rate				X*