. Author manuscript; available in PMC: 2010 Feb 1.

Published in final edited form as: J Pediatr Gastroenterol Nutr. 2009 Feb;48(2):216–225. doi: 10.1097/MPG.0b013e31818de195

Table 4.

Summary of differences in gain in weight-for-age Z-score (WAZ score) in subgroup of infants starting enteral feeds prior to the 7^th day of life and still in the NICU at 3, 4, and 5 weeks.

	n			p value for comparison of gain in WAZ score (all 3 groups)^a	Improvement in WAZ score and 95% CI's (comparing PBP to placebo) ^b
	Placebo	CUL	PBP
Week 1 to week 3	20	19	21	0.023	0.22 (0.02-0.41)
Week 1 to week 4	19	14	17	0.018	0.26 (0.04-0.48)
Week 1 to week 5	16	10	14	0.052	0.26 (-0.02-0.54)

Oneway ANOVA.

Scheffe's method with alpha 0.05.