Variables | Total (%) | BMI | P value | |
---|---|---|---|---|
<25 | ≥25 | |||
No. of patients | 665 | 463 (69.6) | 202 (30.4) | Â |
Sex | ||||
 Male | 482 (72.5) | 332 (71.7) | 150 (74.3) | 0.498 |
 Female | 183 (27.5) | 131(28.3) | 52 (25.7) |  |
Age | ||||
 < 65 | 354 (53.2) | 232 (50.1) | 122(60.4) | 0.015 |
 ≥ 65 | 311 (46.8) | 231(49.9) | 80 (39.6) |  |
ECOG-PS | ||||
 0 | 612 (92.0) | 418 (90.3) | 194 (96.0) | 0.012 |
 ≥ 1 | 53 (8.0) | 45 (9.7) | 8 (4.0) |  |
Histological type | ||||
 clear cell | 560 (84.2) | 380 (82.1) | 180 (89.1) | 0.116 |
 papillary | 57 (11.0) | 57 (2.3) | 16 7.9) |  |
 chromophobe | 11 (1.7) | 8 (1.7) | 3 (1.5) |  |
 others | 21 (3.2) | 18 (3.9) | 3 (1.5) |  |
Pathological stage | ||||
 1 | 520 (78.2) | 357 (77.1) | 163 (80.7) | 0.378 |
 2 | 61 (9.2) | 42 (9.1) | 19 (9.4) |  |
 3 | 80 (12.0) | 60 (13.0) | 20 (9.9) |  |
 4 | 4 | 4 (0.9) | 0 (0) |  |
Tumor size | ||||
 < 4cm | 366 (55.1) | 252 (54.4) | 114 (56.7) | 0.586 |
 ≥ 4cm | 298 (44.9) | 211 (45.6) | 87 (43.3) |  |