. Author manuscript; available in PMC: 2020 Nov 22.

Published in final edited form as: J Pediatr Gastroenterol Nutr. 2011 Sep;53(3):333–338. doi: 10.1097/MPG.0b013e3182243aa7

TABLE 3.

Association of gestational age, initial illness, size at birth, and inpatient nutrition with anthropometries and body composition following hospital discharge in 26 preterm infants

	Weight	Length	FFM	Fat mass	Body fat, %
Visit 1
GA^a	0.5931^**	0.6434^***	0.6036^**	0.2917	−0.0199
SNAP^b	−0.0177	−0.1069	−0.1755	0.3229	0.3826
WAZ^a	0.3421	0.3573	0.2906	0.3131	0.1891
kcal^b	−0.3973	−0.1715	−0.5118^**	0.0529	0.3440
Protein^b	−0.6928^***	−0.2064	−0.7310^***	−0.2469	0.1277
Visit 2
GA^a	0.2539	0.4643^*	0.4975^*	−0.1558	−0.3635
SNAP^b	−0.1976	−0.3437	−0.5173^*	0.2080	0.3917
WAZ^a	0.5162^*	0.4203^*	0.2739	0.5596^**	0.4361^*
kcal^b	−0.3648	−0.5097^*	−0.5101^*	−0.0803	0.0733
Protein^b	−0.4228^*	−0.2572	−0.4879^*	−0.2008	−0.0663
Change (visit 1 to visit 2)
GA^c	0.2885	−0.4389^*	−0.1263	0.4704^*	0.5463^**
SNAP^d	−0.2067	−0.4415^*	−0.5041^*	0.1325	0.1208
WAZ^c	0.4679^*	0.3989	0.1299	0.5121^*	0.3589
kcal^d	−0.1447	−0.0774	−0.0764	−0.1401	−0.2753
Protein^d	−0.1820	−0.0261	0.0173	−0.2718	−0.3257

FFM = fat-free mass; GA = gestational age; kcal = energy deficit; protein = protein deficit; SNAP = Score for Neonatal Acute Physiology; WAZ = birth weight z score.

Adjusted for infant’s sex, feeding type, and chronological age at visit.

Adjusted for infant’s sex, feeding type, chronological age at visit, and gestational age.

Adjusted for infant’s sex, feeding type, and difference in age from visit 1 to visit 2.

Adjusted for infant’s sex, feeding type, difference in age from visit 1 to visit 2, and gestational age.

P < 0.05;

^**

P < 0.01;

^***

P < 0.001.