Table 6. Comparison of the duration of different labor stages in primiparous women who received combined spinal-epidural analgesia during labor (n = 143) or no analgesia at all (n = 142).

Labor stage	CSEA group	Control group	P value
First stage, h	6.22 (3.17–9.27)	8.63 (5.37–11.89)	<0.001*
Second stage, min	46.19 (28.7–63.68)	51.76 (32.35–71.17)	0.011*
Total labor duration, h	7.25 (4.63–9.87)	9.52 (6.49–12.55)	<0.001*

CSEA, combined spinal-epidural analgesia; h, hour; min, minutes.

* Mann-Whitney U test.