Table V.

Rate of progression of spontaneous first stage of labor in nulliparous and multiparous women with and without diabetes

	Cervical Dilation (cm)	Admitted at 3 cm		Admitted at 4 cm		Admitted at 5 cm
		N	M	N	M	N	M
PreDM (n=429)	From 3 to 4	2.05 (4.23)	1.99 (5.02)	-	-	-	-
	4 to 5	0.65 (2.01)	1.04 (3.72)	1.71 (4.05)	1.32 (5.44)	-	-
	5 to 6	0.56 (2.78)	0.65 (2.06)	0.54 (3.07)	0.48 (2.55)	0.87 (6.29)	0.94 (3.85)
	6 to 7	0.83 (0.84)	0.12 (0.77)	0.30 (0.30)	0.28 (1.16)	0.42 (0.97)	0.24 (1.42)
	7 to 8	0.67 (0.78)	0.09 (0.46)	0.18 (0.78)	0.20 (1.13)	0.28 (0.81)	0.12 (1.10)
	8 to 9	0.34 (0.34)	0.10 (1.08)	0.23 (1.05)	0.07 (0.42)	0.37 (1.34)	0.02 (0.34)
	9 to 10	0.53 (1.04)	0.16 (1.18)	0.41 (1.52)	0.18 (0.64)	0.70 (0.99)	0.15 (0.75)
GDM (n=1,554)	From 3 to 4	2.06 (6.55)	1.63 (5.04)	-	-	-	-
	4 to 5	1.28 (3.82)	0.83 (2.87)	1.31 (4.11)	1.21 (4.55)	-	-
	5 to 6	0.49 (1.83)	0.46 (1.42)	0.56 (2.31)	0.52 (2.00)	0.80 (4.06)	0.82 (2.90)
	6 to 7	0.40 (1.43)	0.10 (0.66)	0.48 (1.45)	0.20 (1.07)	0.49 (1.84)	0.35 (1.58)
	7 to 8	0.42 (1.24)	0.10 (0.59)	0.31 (1.39)	0.15 (0.63)	0.53 (1.48)	0.12 (0.86)
	8 to 9	0.28 (1.02)	0.05 (0.37)	0.14 (1.01)	0.05 (0.31)	0.40 (1.43)	0.05 (0.41)
	9 to 10	0.63 (1.69)	0.22 (0.74)	0.55 (1.73)	0.18 (1.00)	0.68 (2.04)	0.19 (0.92)
Normal (n=69,299)	From 3 to 4	1.83 (4.89)	1.69 (4.83)	-	-	-	-
	4 to 5	1.08 (3.41)	0.81 (3.04)	1.55 (4.51)	1.30 (4.20)	-	-
	5 to 6	0.52 (1.96)	0.35 (1.58)	0.72 (2.51)	0.48 (2.05)	1.07 (3.50)	0.80 (3.07)
	6 to 7	0.29 (1.31)	0.18 (0.94)	0.41 (1.59)	0.24 (1.21)	0.48 (1.98)	0.28 (1.45)
	7 to 8	0.22 (1.00)	0.10 (0.59)	0.27 (1.20)	0.13 (0.73)	0.30 (0.07)	0.15 (0.92)
	8 to 9	0.21 (0.98)	0.07 (0.44)	0.24 (1.07)	0.08 (0.53)	0.28 (1.12)	0.09 (0.60)
	9 to 10	0.56 (1.81)	0.20 (0.80)	0.57 (1.84)	0.20 (0.82)	0.55 (1.85)	0.19 (0.80)

Data presented as medians (90^th percentiles) in hours.

N – nulliparous. M – multiparous. PreDM – preexisting diabetes mellitus. GDM – gestational diabetes mellitus.