Table 2.

Neonatal Characteristics by Maternal BMI

	Reference (REF)	Obese (OB)	Morbidly Obese (MO)	Super Morbidly Obese (SMO)	P value for trend*
	N=26,081	N=21,704	N=3,787	N=590
GA at delivery (wks)	39.1 (38.3-40.0)	39.3 (38.6-40.1)	39.1 (38.1-40.1)	39.1 (38.0-40.0)	<.001
GA < 37 wks	3062 (11.7)	1889 (8.7)	458 (12.1)	73 (12.4)	<.001
GA < 32 wks	649 (2.5)	291 (1.3)	101 (2.7)	14 (2.4)	<.001
GA < 28 wks	242 (0.9)	99 (0.5)	42 (1.1)	7 (1.2)	0.03
BW (gm)	3212 (2887-3522)	3390 (3064-3721)	3430 (3058-3785)	3445 (3055-3850)	<.001
BW > 4000 gm	1190 (4.6)	2290 (10.6)	521 (13.8)	96 (16.3)	<.001
NICU admit	3331 (12.8)	2624 (12.1)	592 (15.6)	94 (15.9)	0.008
LOS > 5 days	2146 (8.2)	1420 (6.6)	363 (9.6)	55 (9.4)	0.14
Anomaly	731 (2.8)	628 (2.9)	140 (3.7)	18 (3.1)	0.02

Data presented are n (%) or Median (IQR)

^*Jonckheere-Terpstra test for continuous variables and Cochran-Armitage test for categorical variables

GA = gestational age, wks = weeks, BW = birth weight, gm = grams, NICU = neonatal intensive care unit, LOS = length of stay

Missing: Birthweight (7); NICU admission (11); length of stay (61); anomaly (3)