Table 1.

Description of clinical data of patients with clear cell renal cell carcinoma

Variable	Number of patients
Gender
Male	19
Female	16
T stage
T1	13
T2	14
T3	7
T4	1
N stage
N0	31
N1	2
N2	1
N3	1
M stage
M0	28
M1	7
Average age in years
Males	57.8
Females	57.1
Smoker
No	30
Yes	5
Alcoholic
No	27
Yes	8