Table 1. Clinical and demographic characteristics of study subjects.
| Characteristic | Oncocytoma (n=51) | Chromophobe RCC (n=120) | p-value |
|---|---|---|---|
| Male sex | 21 (41.2) | 55 (45.8) | 0.575 |
| Age (y) | 58 (46-64) | 54 (46.3-61) | 0.321 |
| Body mass index (kg/m2) | 23.1 (21.4-24.8) | 23.8 (21.1-26.5) | 0.190 |
| Laterality | 22 (43.1) | 67 (55.8) | 0.128 |
| Operation method | 0.890 | ||
| Open | 15 (29.4) | 39 (32.5) | |
| Video-assisted mini-incision | 17 (33.3) | 33 (27.5) | |
| Laparoscopy | 9 (17.6) | 24 (20) | |
| Robot | 10 (19.6) | 24 (20) | |
| Radical nephrectomy | 22 (43.1) | 54 (45.0) | 0.823 |
| Tumor size (cm) | 3.3 (2.3-6.7) | 4 (2.2-6.7) | 0.490 |
| RENAL nephrometry score | 7 (6-9) | 8 (7-10) | 0.095 |
Values are presented as number (%) or median (interquartile range).
RCC, renal cell carcinoma.