. Author manuscript; available in PMC: 2021 Sep 1.

Published in final edited form as: Obstet Gynecol. 2020 Sep;136(3):450–457. doi: 10.1097/AOG.0000000000003951

Table 3.

Outcomes by gestational age at delivery

	39 weeks n=18,373	40 weeks n=15,391	41 weeks n=6,106	Cochran-Armitage P for trend
Composite of neonatal adverse outcomes^†	192 (1.0)	198 (1.3)	99 (1.6)	<0.001
Composite of maternal adverse outcomes	1,222 (6.7)	1,474 (9.6)	778 (12.7)	<0.001
Shoulder dystocia requiring maneuvers	430 (2.3)	472 (3.1)	192 (3.1)	<0.001
Size for gestational age
Small	1,522 (8.3)	1,023 (6.6)	324 (5.3)	<0.001
Large	1,413 (7.7)	1,316 (8.6)	637 (10.4)	<0.001

Data are n (%) unless otherwise noted.

^†

Missing in 53