Table 2. Clinicopathological parameters by group.
| Characteristic | cRCC (n=1,286) | ncRCC (n=400) | p-value | |
|---|---|---|---|---|
| Sex | ||||
| Male | 852 (66.3) | 260 (65.0) | 0.688 | |
| Female | 434 (33.7) | 140 (35.0) | ||
| Age at diagnosis (y) | 58.5±11.5 | 58.1±11.7 | 0.544 | |
| Smoking history | ||||
| Non-smoker | 843 (65.6) | 260 (65.0) | 0.727 | |
| Ex-smoker | 223 (17.3) | 58 (14.5) | ||
| Current smoker | 158 (12.3) | 49 (12.2) | ||
| Passive smoker | 2 (0.2) | 1 (0.2) | ||
| BMI (kg/m2) | 25.2±4.46 | 24.2±4.00 | <0.001 | |
| Hypertension | 754 (58.6) | 267 (66.8) | 0.001 | |
| Charlson comorbidity index | ||||
| 0–1 | 636 (49.5) | 158 (39.5) | 0.002 | |
| ≥2 | 624 (48.5) | 226 (56.5) | ||
| End-stage renal failure | 105 (8.2) | 111 (27.8) | <0.001 | |
| Symptomatic at presentation | 653 (50.8) | 199 (49.8) | 0.814 | |
| Follow-up time (mo) | 40.0±42.1 | 35.3±43.4 | 0.062 | |
Values are presented as number (%) or mean±standard deviation.
cRCC, conventional renal cell carcinoma; ncRCC, non-conventional RCC; BMI, body mass index.