Table 1. Clinicopathological parameters in the overall cohort.
| Characteristic | Value (n=1,686) | ||
|---|---|---|---|
| Sex | |||
| Male | 1,112 (66.0) | ||
| Female | 574 (34.0) | ||
| Age at diagnosis (y) | 58.4±11.6 | ||
| Smoking history | |||
| Non-smoker | 1,103 (65.4) | ||
| Ex-smoker | 281 (16.7) | ||
| Current smoker | 207 (12.3) | ||
| Passive smoker | 3 (0.2) | ||
| BMI (kg/m2) | 25.0±4.38 | ||
| Hypertension | 1,021 (60.6) | ||
| Charlson comorbidity index | |||
| 0–1 | 794 (47.1) | ||
| ≥2 | 850 (50.4) | ||
| End-stage renal failure | 216 (12.8) | ||
| Symptomatic at presentation | 852 (50.5) | ||
| Follow-up time (mo) | 38.8±42.5 | ||
| Histologic subtypes | |||
| Conventional RCC (n=1,286) | |||
| Clear cell | 1,286 (76.3) | ||
| Non-conventional RCC (n=400) | |||
| Papillary | 198 (11.7) | ||
| Acquired cystic disease | 26 (1.5) | ||
| Chromophobe | 49 (2.9) | ||
| Clear cell papillary | 50 (3.0) | ||
| Collecting duct | 2 (0.1) | ||
| MCRN-LMP | 20 (1.2) | ||
| RCC, unclassified | 42 (2.5) | ||
| Translocation | 5 (0.3) | ||
| Tubulocystic | 8 (0.5) | ||
Values are presented as number (%) or mean±standard deviation.
BMI, body mass index; RCC, renal cell carcinoma; MCRN-LMP, multilocular cystic renal neoplasm of low malignant potential.