. Author manuscript; available in PMC: 2014 May 1.

Published in final edited form as: Obstet Gynecol. 2013 May;121(5):969–975. doi: 10.1097/AOG.0b013e31828aea03

Table 3.

Outcomes For All Women and Their Neonates In Reference To Weight Gain

	Below IOM n=787	Within IOM n=1,448	Above IOM n=6,058	P ^*
Gestational hypertension	125 (15.9)	258 (17.8)	1,436 (23.7)	< 0.001
Preeclampsia	37 (4.7)	45 (3.1)	483 (8.0)	< 0.001
Cesarean delivery	138 (17.5)	276 (19.1)	1,647 (27.2)	< 0.001
Indicated preterm birth	25 (3.2)	35 (2.4)	173 (2.9)	0.99
Spontaneous preterm birth	66 (8.4)	75 (5.2)	283 (4.7)	< 0.001
Small for gestational age^†	158 (20.4)	221 (15.3)	647 (10.7)	< 0.001
Large for gestational age^‡	28 (3.6)	99 (6.9)	732 (12.1)	< 0.001

IOM, Institute of Medicine.

Data are n (%).

P values are from the Cochran-Armitage test for trend.

^†

Small for gestational age defined as birth weight below the 10^th percentile.

^‡

Large for gestational age defined as birth weight at or above the 90th percentile.