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

Table 1

Comparison of the degree of postoperative abdominal pain.

Group	n	The degree of abdominal pain				x ^2 value	value
		None	Light	Medium	Severe
Observation group	202	158 (78.2%)	31 (15.3%)	12 (5.9%)	1 (0.5%)	4.458	0.035
Control group	119	80 (67.2%)	27 (22.7%)	10 (8.4%)	2 (1.7%)

Note: Degree of abdominal pain (none means no abdominal pain; mild means occasional cramping/swelling/stabbing pain in small clothes; medium means frequent episodes of the above symptoms; severe means persistent episodes of the above symptoms).