项目

指标

试验组

对照组

合计

统计量

P

疼痛程度

严重n (%)

0 (0%)

3 (10.3%)

3 (5.0%)

0.0000

中度n (%)

0 (0%)

12 (41.4%)

12 (20.0%)

(Fisher精确概率法)

轻度n (%)

11 (35.5%)

11 (37.9%)

22 (36.7%)

无n (%)

20 (64.5%)

3 (10.3%)

23 (38.3%)

合计

31

29

60

子宫壁损伤

损伤见血n (%)

0 (0%)

4 (13.8%)

4 (6.7%)

0.0000

轻微擦伤n (%)

4 (12.9%)

17 (58.6%)

21 (35.0%)

(Fisher精确概率法)

无损伤n (%)

27 (87.1%)

8 (27.6%)

35 (58.3%)

合计

31

29

60