Table 1. Details of all patients included in the study.

	N	%
Characteristic	Normal
Total	60	100
Sex
Male	38	63.3
Female	22	36.7
Age (years)
Median (range)	63 (27, 82)
	Benign
Total	30	100
Sex
Male	19	63.3
Female	11	36.7
Age (years)
Median (range)	58 (34, 84)
Condition
Urinary tract infection	4	13
Benign prostatic hypertrophy	3	10
Renal stone	12	40
Cystic disease	4	13
Benign renal tumoura	6	20
Renal atrophy	1	4
	RCC
Total	149	100
Sex
Male	94	63.1
Female	55	36.9
Age (years)
Median (range)	61 (37, 85)
pTumour diameter (cm)
Median (range)	6 (2.0, 15.5)
CT Tumour diameter (cm)
Median (range)	6 (2.0, 21)
Grade
1	3	2.0
2	33	22.2
3	73	49.0
4	40	26.8
Sarcomatoid change
No	137	91.9
Yes	12	8.1
pT stage
1a	31	20.8
1b	32	21.5
2	14	9.4
3a	27	18.1
3b	42	28.2
4	3	2.0
CT T stage
1a	35	27.3
1b	38	29.7
2	31	24.2
3a	19	14.8
4	5	3.9
N stage
0	132	88.6
1	17	11.4
M stage
0	111	74.5
1	38	25.5
TNM stage
I	58	38.9
II	10	6.7
III	42	28.2
IV	39	26.2
Symptoms
Local	63	43.2
Asymptomatic	49	33.6
Systemic	34	23.3
Relapse
No	76	65.5
Yes	40	34.5
Cancer death
No	112	75.2
Yes	37	24.8
Death from any cause
No	94	63.1
Yes	55	36.9

Abbreviation: CC=renal cell carcinoma.

^a3 × oncocytoma, 1 × metanephric adenoma, 1 × cystic nephroma, 1 × inflammatory pseudotumour.