Effect of Low-Frequency Electrical Stimulation Combined with Tonifying Kidney and Blood Pills on Uterine Rejuvenation after Abortion

Table 3

Comparison of the volume of vaginal bleeding (mL).

Group	n	Bleeding volume (ml)			x ^2 value	value
		<20	20–60	>60
Observation group	202	160 (79.2%)	34 (16.8%)	8 (4.0%)	2.053	0.358
Control group	119	89 (74.8%)	21 (17.6%)	9 (7.6%)