Table 1. Patient characteristics.

Patient characteristic	n = 106	%
Gender
Male	67	63.2
Female	39	36.8
Median age (95%-CI)	65 (61.7–66.3) years
Tumor type and grade
Clear cell RCC	74	69.8
Grade 1	33	31.1
Grade 2	38	35.8
Grade 3	3	2.9
Grade 4	0	0
Non-clear cell RCC	32	30.2
Grade 1	7	6.6
Grade 2	24	22.5
Grade 3	1	0.9
Grade 4	0	0
Clavien-Dindo score
0	81	76.4
1	9	8.5
2	6	5.7
3	5	4.7
4	5	4.7
5	0	0