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

Published in final edited form as: Am J Obstet Gynecol. 2013 Apr 2;209(1):38.e1–38.e6. doi: 10.1016/j.ajog.2013.04.001

Table 4.

Indication for Cesarean by Type of Internal Monitor

	No Internal Monitors (n=2,501)	FSE Only (n=625)	AOR (95% CI)	IUPC Only (n=789)	AOR (95% CI)	Both FSE & IUPC (n=2,530)	AOR (95% CI)
Cesarean for Arrest Disorder	65 (2.6%)	19 (3.0%)	0.8 (0.5–1.4)^*	63 (8.0%)	1.7 (1.1–2.5)^†	197 (7.8%)	1.7 (1.2–2.3)^†
Cesarean for Non- Reassuring Fetal Status	117 (4.7%)	28 (4.5%)	0.8 (0.5–1.2)^‡	44 (5.6%)	0.9 (0.6–1.3)^§	379 (15.0%)	2.6 (2.1–3.3)^§

No internal monitors used as reference group

Adjusted for prior vaginal delivery, rupture of membranes >12 hours, gestational age at delivery, induction of labor, black race, maternal fever prior to delivery, and regional anesthesia

^†

Adjusted for prior vaginal delivery, rupture of membranes >12 hours, gestational age at delivery, obesity, induction of labor, black race, maternal fever prior to delivery, and regional anesthesia

^‡

Adjusted for prior vaginal delivery, gestational age at delivery, black race, induction of labor, obesity, and regional anesthesia

^§

Adjusted for prior vaginal delivery, gestational age at delivery, induction of labor, and obesity