Table 1.

Clinical–Pathological Parameters of the Study Cohorts for PCR

	Screening Cohort		Validation Cohort
	ccRCC	Normal	ccRCC	Normal
	n = 18 (%)	n = 10 (%)	n = 74 (%)	n = 36 (%)
Sex
Male	11 (61.1)	6 (60.0)	53 (71.6)	26 (72.2)
Female	7 (38.8)	4 (40.0)	21 (28.4)	10 (27.7)
Age
Mean	64.83	66.4	66.5	64.75
Min–max	43–83	46–89	38–89	43–86
Pathological stage
pT1	7 (38.8)	n.a.	42 (56.8)	n.a.
pT2	2 (11.1)	n.a.	7 (9.5)	n.a.
pT3	8 (44.4)	n.a.	24 (32.4)	n.a.
pT4	1 (5.5)	n.a.	1 (1.4)	n.a.
Vascular invasion	7 (38.8)	n.a.	24 (32.4)	n.a.
LN metastasis	0	n.a.	2 (2.7)	n.a.
Distant metastasis	1 (5.5)	n.a.	14 (18.9)	n.a.
Grading
Grade 1	1 (5.5)	n.a.	9 (12.2)	n.a.
Grade 2	13 (72.2)	n.a.	47 (63.5)	n.a.
Grade 3	3 (16.6)	n.a.	15 (20.3)	n.a.
Grade 4	1 (5.5)	n.a.	3 (4.1)	n.a.