Table VI.

Risk factors for predicting postoperative recurrence and cancer-specific survival in ccRCC with Fuhrman grade 2.

Factors	Recurrence-free survival			Cancer-specific survival
	Univariate	Multivariate		Univariate	Multivariate
	P-value	HR (95% CI)	P-value	P-value	HR (95% CI)	P-value
Age (years)	0.2070			0.0325		0.2167
≤62
>62					3.45 (0.52–67.8)
Sex	0.6169			0.5200
Female
Male
pT stage	<0.0001		0.0582	0.0283		0.1785
≤pT2
≥pT3		3.06 (0.96–9.55)			0.23 (0.02–1.94)
Fuhrman grade 2	0.0300		0.7038	0.0007		0.0389
Non-upgraded group
Upgraded group		1.19 (0.49–2.88)			7.20 (1.09–143)
TN	<0.0001		0.0349	<0.0001		0.0444
Absence
Presence		3.33 (1.09–9.75)			7.58 (1.06–47.2)
MVI	<0.0001		0.0047	0.0001		0.0168
Absence
Presence		4.65 (1.63–12.8)			9.48 (1.54–74.1)

ccRCC, clear cell renal cell carcinoma; TN, tumor necrosis; MVI, microvascular invasion; HR, hazard ratio; CI, confidence interval.