Table 4. Duration of labor compared with Zhang [26] and Oladapo[23] results.

Cervical dilation	Cervical dilation	Current study	Zhang et al	Oladapo et al
3	4	0.83 (0.14–4.97)	1.8 (8.1)	2.82 (0.60–13.33)
4	5	0.89 (0.15–5.26)	1.3 (6.4)	1.72 (0.38–7.83)
5	6	0.68 (0.10–4.55)	0.8 (3.2)	1.19 (0.23–6.17)
6	7	0.48 (0.06–3.82)	0.6 (2.2)	0.66 (0.09–4.92)
7	8	0.33 (0.03–3.62)	0.5 (1.6)	0.25 (0.02–3.10)
8	9	0.24 (0.02–3.00)	0.5 (1.4)
8	10			0.87 (0.18–4.19)
9	10	0.18 (0.01–2.66)	0.5 (1.8)

Data are reported as median hours (5^th, 95^th percentiles)

Zhang et al data reported as median hours (95^th percentile)