Table 2

Cox's proportional hazards model analysis of prognostic factors in patients with cRCC

CharacteristicsHR95% CIp Value
Age (≤60/>60)0.54510.1975 to 1.5050.3623
Gender (male/female)1.6660.6330 to 4.3820.2434
Clinical stage
(I–II/III–IV)		0.35230.08239 to 1.5060.1159
Tumour size
(>7 cm/≤7 cm)		0.58930.2265 to 1.5330.4783
Histological grade
(I–II/III–IV)		2.6320.09828 to 0.70570.0089
IgG staining
(weak/strong)		3.4940.1299 to 0.93970.0455
Lymph node metastasis0.60400.05247 to 6.9530.1639
Distant metastasis2.8440.2043 to 39.590.6054