Table 3.

Median time of spontaneous onset of labor within 24 h and 48 h according to lactate level and visibility of amniotic fluid

S. no.	Explanatory (n = 118)	Onset within 24 h	Odds ratio (95 % CI)	Onset within 48 h	Odds ratio (95 % CI)
1. According to lactate level	Lactate level
	<5.0 mmol/L	6 (10.71 %)	17.5	11 (19.61 %)	47.43
	(n = 56)		(6.43–47.59)		(15.91–139.66)
	>5.0 mmol/L	42 (67.7 %)		52 (83.87 %)
	(n = 62)
2. According to visibility of amniotic fluid	Amniotic fluid
	Nonvisible	16 (23.88 %)	5.368	21 (31.34 %)	10.22
	(n = 67)		(2.45–11.932)	42 (82.35 %)	(4.21–24.79)
	Visible	32 (62.74 %)
	(n = 51)