Table 2.

Kaplan–Meier survival analysis (log-rank test) according to USP7 expression in patients with EOC

Variables	Cases (n=141)	Overall survival time (months)		P-value#
		Mean	Median
Age (years)				0.004*
≤60	103	83.07	82
>60	38	57.09	60
FIGO stage				0.020*
I–II	46	91.68	88
III–IV	95	68.96	68
Histology type				0.483
Serous	121	74.90	72
Non-serous	20	84.09	82
Pathological grade				0.037*
G1–G2	97	81.80	81
G3	44	64.89	60
Lymph node metastasis				0.005*
No	64	89.45	83
Yes	77	64.48	66
Preoperative CA-125 (U/mL)				0.795
≤900	73	78.20	82
>900	68	74.89	72
USP7 expression				0.003*
Low expression	82	85.75	83
High expression	59	62.34	60

Notes:

^#Log-rank correlation test.

^*Statistically significant.

Abbreviations: USP7, ubiquitin-specific protease 7; EOC, epithelial ovarian cancer; FIGO, International Federation of Gynecology and Obstetrics; CA, cancer antigen.