A Large Retrospective Study of 12714 Cases of LEEP Conization Focusing on Cervical Cancer That Colposcopy-Directed Biopsy Failed to Detect

Table 1

Pathology of cervical cancer before and after LEEP conization.

Punch biopsy	Conization				Number of LEEP conizations	% of cervical cancers
	IA1	IA2	IB1	Total
LSIL	1	0	2	3	1257	0.24%
HSIL	439	16	266	721	11312	6.37%
AIS	5	2	28	35	144	24.31%
Total	445	18	296	759	12713	5.97%

Note. The difference between any 2 groups was statistically significant .