Effect of percutaneous electrical stimulation at the Baliao point on preventing postpartum urinary retention after labor analgesia

Table 2 Comparison of clinical indicators between the two groups

Clinical indicators	Combined therapy group (n = 86)	Control group (n = 82)	t/χ2 value	P value
Time of first spontaneous urination after delivery (h)	2.92 ± 1.04	3.61 ± 1.13	4.121	< 0.001
First postpartum urine volume (mL)	163.54 ± 24.67	143.72 ± 23.95	5.280	< 0.001
Bladder residual urine volume (mL)	54.81 ± 10.78	65.25 ± 13.52	5.547	< 0.001
Postpartum hemorrhage volume (mL)	323.15 ± 46.95	348.12 ± 45.03	3.515	0.001
Waiting time for urination (min)	0.94 ± 0.31	1.29 ± 0.42	6.165	< 0.001
PUR occurrence	4 (4.65)	13 (15.85)	5.792	0.016

PUR: Postpartum urinary retention.