TABLE 1

Neonatal Demographic Data (n = 10 903): Entire Population

Neonatal Variable	% of Patients With Variable and NEC	OR	95% CI	P
Race
Black	8.8	1.58	1.34–1.86	<.0001
Non-black^a	6.1
Gender
Male	7.6	1.15	0.99–1.33	.0684
Female^a	6.8
Birth weight, g
401–750	11.5	3.30	2.62–4.16	<.0001
751–1000	9.1	2.43	1.94–3.05	<.0001
1001–1250	6.0	1.58	1.24–2.00	.0090
1251–1500^a	3.9
Site of birth
Outborn	10.2	1.54	1.25–1.90	<.0001
Inborn^a	6.9
Apgar score < 7 at 5 min
Yes	8.8	0.96	0.81–1.14	.6401
No^a	6.6
Network center				<.0001