. Author manuscript; available in PMC: 2012 Aug 22.

Published in final edited form as: Am J Obstet Gynecol. 2011 Jun 15;205(3):257.e1–257.e6. doi: 10.1016/j.ajog.2011.06.028

TABLE 3.

Adverse perinatal outcomes associated with gestational weight gain

Outcome	Weight gain < IOM guidelines, n (%)	Weight gain within IOM guidelines, n (%)	Weight gain > IOM guidelines, n (%)	P value
All cesarean (n = 1060)	211 (40.3)	263 (45.5)	499 (54.8)	< .001
Primary cesarean (n = 512)	100 (21.2)	117 (20.9)	253 (28.1)	.002
Birthweight >4000 g (n = 398)	57 (12.3)	90 (16.3)	224 (25.5)	< .001
LGA >90th percentile (n = 562)	83 (18.0)	129 (23.4)	313 (35.6)	< .001
SGA <10th percentile (n = 113)	33 (7.1)	25 (4.5)	39 (4.4)	.051
NICU admission (n = 237)	67 (18.8)	47 (12.1)	106 (18.5)	.008
IUFD (n = 50)	23 (4.2)	10 (1.7)	10 (1.1)	< .001

IOM, Institute of Medicine; IUFD, intrauterine fetal demise; LGA, large-for-gestational-age; NICU, neonatal intensive care unit; SGA, small-for-gestational-age.