Table 1: Description and comparison of clinical and laboratory characteristics of the study subjects.

CharacteristicDiscovery samples by iTRAQValidation samples by ELISA
RCC ()Control ()RCC ()Control ()

Age (years)54.80 ± 13.3252.80 ± 9.1353.10 ± 13.3355.63 ± 13.98
Gender (male/female)7/37/318/1216/14
BMI22.86 ± 2.5722.55 ± 2.5521.78 ± 2.8322.16 ± 3.02
Hypertension4 (40%)2 (20%)6 (20%)4 (13.3%)
Diabetes mellitus2 (20%)1 (10%)5 (16.7%)3 (10%)
Smoking3 (30%)3 (30%)7 (23.3%)6 (20%)
Pathological stage
 pT110 (100%)16 (53.3%)
 pT211 (36.7%)
 pT32 (6.7%)
 pT41 (3.3%)
 M010 (100%)28 (93.3%)
 M12 (6.7%)
Fuhrman grades
 G1-210 (100%)21 (70%)
 G3-49 (30%)
Histological subtype
 Clear-cell10 (100%)23 (76.7%)
 Papillary3 (10%)
 Chromophobe4 (13.3%)

Data are expressed as (%), or mean ± SD. RCC: renal cell carcinoma.