From: Clinical efficacy study of the IBS® (Intergrated Bigatti Shaver) Tissue Removal Device in the treatment of endometrial polyps
IBS
Cold knife
χ2 value
p value
Pregnancy status(have pregnancy intention)
be pregnant
21(48.84)
22(51.16)
2.137
0.144
not pregnant
2(22.22)
7(77.78)
Recurrence
yes
6(28.57)
15(71.43)
4.108
0.043
no
94(51.93)
87(48.07)