Preoperative Butyrylcholinesterase Level as an Independent Predictor of Overall Survival in Clear Cell Renal Cell Carcinoma Patients Treated with Nephrectomy

Table 1

Patient characteristics.

Age (years, median, IQR)	65 (56–73)
Gender (N, %)
Male	286 (72)
Female	114 (28)
Performance status (N, %)
0	368 (92)
≥1	32 (8)
Clinical T (N, %)
T1	261 (65)
T2	41 (10)
T3	88 (22)
T4	10 (3)
Clinical N (N, %)
N0	384 (96)
N1	16 (4)
Clinical M (N, %)
M0	344 (86)
M1	56 (14)
Followup (months, median, IQR)	36 (17–80)

IQR: interquartile range; N: number; TNM: tumor-node-metastasis staging.