. Author manuscript; available in PMC: 2017 Jan 6.

Published in final edited form as: Am J Obstet Gynecol. 2011 Dec 24;206(3):259.e1–259.e6. doi: 10.1016/j.ajog.2011.12.017

Table II.

Neonatal Morbidity in Black and White Neonates by Week of Gestation.

Combined neonatal morbidity
Gestational Age	White n (%)	Black n (%)	p-value
32	280/1071 (26.1)	90/421 (21.4)	0.04
33	347/1504 (23.0)	102/585 (17.4)	0.005
34	572/2801 (20.4)	142/962 (14.8)	<.001
35	648/4829 (13.4)	149/1451 (10.3)	0.001
36	780/9649 (8.1)	150/2502 (6.0)	<.001
37	953/20,794 (4.6)	248/4680 (5.3)	0.064
38	1,342/48,146 (2.8)	332/8610 (3.9)	<.001
39	1,574/65,309 (2.4)	455/11,351 (4.0)	<.001
40	1,163/43,444 (2.7)	357/8000 (4.5)	<.001
41	510/17,013 (3.0)	175/3267 (5.4)	<.001

Combined neonatal morbidity defined as neonatal transfer, mechanical ventilation>6 hours, seizures, or Apgar score < 7 at 5 minutes.

Nadir of morbidity highlighted for each race.