Preoperative Gamma-Glutamyltransferase Is Associated with Cancer-Specific Survival and Recurrence-Free Survival of Nonmetastatic Renal Cell Carcinoma with Venous Tumor Thrombus

Table 3

Multivariate Cox regression model analysis of predictive factors of CSS and RFS.

Variables	CSS		RFS
	HR (95% CI)	p value	HR (95% CI)	p value
Symptom presentation (yes versus no)	1.648 (0.774–3.509)	0.195	—	—
Maximum tumor width, cm (≥10 versus <10)	2.000 (1.116–3.583)	0.020	—	—
Pathological stage (T3b-4 versus T3a)	2.274 (1.179–4.385)	0.014	1.808 (1.079–3.028)	0.024
Fuhrman grade (G3 + G4 versus G1 + G2)	1.860 (1.007–3.434)	0.047	1.724 (1.051–2.827)	0.031
GGT, IU/L (≥37.5 versus <37.5)	2.115 (1.164–3.843)	0.014	1.955 (1.166–3.276)	0.011

CSS: cancer-specific survival; RFS: recurrence-free survival; HR: hazard ratio; GGT: gamma-glutamyltransferase.