Table 1.
Characteristics of RCC patients and controls
| Cases (n=210) |
Controls (n=200) |
P-value | ||
|---|---|---|---|---|
| Age(y)(mean ± SD) | 62.1 ± 12 | 60.1 ± 16 | 0.35 | |
| Gender | Males | 145(69 %) | 151 (75%) | 0.23 |
| Females | 65 (31 %) | 49 (25 %) | ||
| Grade | 1 | 55 (26 %) | ||
| 2 | 130 (62 %) | |||
| 3+4 | 25(12 %) | |||
| pT | 1 | 114 (54 %) | ||
| 2 | 45(21 %) | |||
| 3 | 48 (23%) | |||
| 4 | 3(2%) | |||
| pN | (−) | 200 (95 %) | ||
| (+) | 10 (5%) | |||
| pM | (−) | 191 (91 %) | ||
| (+) | 19(9 %) | |||
| Pathology | ||||
| Clear cell carcinoma | 198 (94 %) | |||
| Granular cell carcinoma | 10 (5 %) | |||
| Chromophobe cell carcinoma | 2(1 %) |
Abbreviations: pT, pathological tumor classification; pN, lymph node invasion; pM, distant metastasis