Prognostic Outcomes and Risk Factors for Patients with Renal Cell Carcinoma and Venous Tumor Thrombus after Radical Nephrectomy and Thrombectomy: The Prognostic Significance of Venous Tumor Thrombus Level

Table 3

Univariate analysis of prognostic risk factors.

Covariate	HR (95% CI)		HR (95% CI)
	All patients		N0M0 patients
Gender	0.99 (0.54–1.80)	0.971	1.12 (0.45–2.82)	0.807
Age	1.00 (0.97–1.03)	0.949	0.98 (0.95–1.02)	0.373
Symptoms	1.73 (0.90–3.31)	0.102	1.45 (0.56–3.79)	0.446
Tumor position	0.81 (0.46–1.42)	0.461	0.90 (0.37–2.16)	0.806
Preoperative embolization	1.18 (0.65–2.11)	0.592	1.37 (0.54–3.43)	0.507
Tumor size	1.06 (0.96–1.17)	0.242	1.03 (0.88–1.21)	0.705
Tumor thrombus level	1.26 (0.91–1.75)	0.167	1.91 (1.24–2.95)	0.003
Perinephric fat invasion	1.08 (0.62–1.90)	0.783	0.59 (0.23–1.48)	0.259
Adrenal gland invasion	5.65 (2.59–12.35)	<0.001	3.14 (0.659–14.933)	0.151
T	1.65 (1.24–2.21)	0.001	1.92 (1.25–2.94)	0.003
N	4.94 (2.51–9.74)	<0.001
M	4.35 (2.45–7.72)	<0.001
Histological subtype	1.021 (0.87–1.21)	0.803	0.90 (0.67–1.22)	0.509
Fuhrman grade	1.74 (1.01–3.00)	0.045	1.54 (0.65–3.66)	0.327