Table 4.

Frequency of indications for cesarean delivery, stratified by phase and stage of labor

	Latent phase		Active phase		Second stage
Latent phase, hours	NRFS	Dystocia	NRFS	Dystocia	NRFS	Dystocia
0–2.9 (N=932)	144 (15.5)	41 (4.4)	178 (19.1)	369 (40.1)	50 (5.4)	148 (15.9)
3–5.9 (N=1025)	114 (11.1)	144 (14.0)	129 (12.6)	385 (37.6)	46 (4.5)	206 (20.1)
6–8.9 (N=787)	77 (9.8)	234 (29.7)	74 (9.4)	271 (34.4)	19 (2.4)	109 (13.9)
9–11.9 (N=433)	39 (9.0)	139 (32.1)	38 (8.8)	151 (34.9)	9 (2.1)	57 (13.2)
12–14.9 (N=207)	25 (12.1)	71 (34.3)	16 (7.7)	65 (31.4)	4 (1.9)	24 (11.6)
15–17.9 (N=115)	9 (7.8)	55 (47.8)	9 (7.8)	31 (27.0)	3 (2.6)	8 (7.0)
≥18 (N=109)	9 (8.3)	48 (44.0)	5 (4.6)	33 (30.3)	2 (1.8)	12 (11.0)

Data presented as N (%)

NRFS = non-reassuring fetal status