. Author manuscript; available in PMC: 2012 Sep 1.

Published in final edited form as: J Pediatr. 2011 Apr 13;159(3):392–397. doi: 10.1016/j.jpeds.2011.02.035

Table 3.

Multivariate Regression Analysis of Risk Factors for NEC

Characteristic	Adjusted OR (95% CI)^*	p-value^*
SGA	3.40 (0.96, 12.05)	0.058
RDS	0.46 (0.24, 0.88)	0.018
Type of feed
Breast milk	0.57 (0.30, 1.10)	0.093
Breast milk & formula	0.74 (0.39, 1.41)	0.360
No feeds	0.90 (0.28, 2.85)	0.854
Formula	Reference
Full feeds reached	2.11 (1.08, 4.10)	0.028
Sepsis	11.20 (3.44, 36.45)	<0.0001
Antibiotic exposure	1.10 (1.02, 1.19)	0.015
Sepsis by Antibiotic Exposure	0.85 (0.78, 0.94)	0.001

Conditional Logistic Regression

Abbreviations: NEC, necrotizing enterocolitis; OR, odds ratio; CI, confidence interval; SGA, small for gestational age; RDS, respiratory distress syndrome