Table 3. Evaluation of low-risk criteria according to KSGO, SOGC, INCa, and fertility-sparing therapy candidates.

	Low risk group			FSS candidates
	KSGO (n=178)	SOGC (n=204)	INCa (n=249)	NCCN (n=48)	KGOG 2020 (n=99)
Pathologic stage
IA	166 (93.3%)	176 (86.3%)	225 (90.4%)	47 (97.9%)	94 (95.0%)
IB	8 (4.5%)	21 (10.3%)	12 (4.8%)	0 (0%)	0 (0%)
II	1 (0.6%)	1 (0.5%)	6 (2.4%)	0 (0%)	3 (3.0%)
IIIA	0 (0%)	2 (1.0%)	0 (0%)	0 (0%)	0 (0%)
IIIB	0 (0%)	0 (0%)	0 (0%)	0 (0%)	0 (0%)
IIIC	3 (1.7%)	4 (2.0%)	6 (2.4%)	1 (2.1%)	2 (2.0%)
IV	0 (0%)	0 (0%)	0 (0%)	0 (0%)	0 (0%)
≥Stage II	4 (2.3%)	7 (3.4%)	12 (4.8%)	1 (2.1%)	5 (5.1%)
Lymph node metastasis	3 (1.7%)	4 (2.0%)	6 (2.4%)	1 (2.1%)	2 (2.0%)
AUC* (95% CI)	0.65 (0.62-0.69)	0.67 (0.63-0.71)	0.70 (0.65-0.75)	0.54 (0.52-0.56)	0.58 (0.55-0.61)

^*For the diagnosis of lymph node metastasis.

FSS, fertility-sparing surgery; KSGO, Korean Society of Gynecologic Oncology; SOGC, Society of Obstetricians and Gynaecologists of Canada; INCa, French National Cancer Institute (INCa); NCCN, National Cancer Comprehensive Network; KGOG, Korean Gynecologic Oncology Group; AUC, area under the curve; CI, confidence interval.