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. Author manuscript; available in PMC: 2023 Jun 23.

Published in final edited form as: J Pediatr. 2022 Jan 12;244:64–71.e2. doi: 10.1016/j.jpeds.2021.12.070

Table II.

NEC outcomes

Outcomes	All VLBWs			ELBWs (<1000 g)
Outcomes	No EVC001 (N = 301)	EVC001 (N = 182)	P value	No EVC001 (N = 125)	EVC001 (N = 75)	P value
NEC, %	11.0	2.7	<.01^*	19.2	5.3	<.01^*
RR (95% CI)	0.27 (0.09–0.61)		<.01^†	0.28 (0.09–0.70)		.02^†
NNT (95% CI)	13 (10.0–23.5)			8 (5.7–17.3)
NEC-related mortality, %	2.7	0	.03^*	5.6	0	<.05^*
NEC onset, day of life, mean	23.5	16.8	.30^‡	24.0	19.3	.65^‡
Medical NEC (Bell stage II), %	7.0	1.1	<.01^*	12.0	2.7	.03^*
Surgical NEC (Bell stage III), %	4.0	1.6	.18^*	7.2	2.7	.21^*

^*

By the Fisher exact test.

^†

By log binomial regression adjusted for sex, birth weight, gestational age at birth, and mode of delivery.

^‡

By the Wilcoxon rank-sum test.