Table 1.
Baseline data of the patients included in this study (n=514)
| Variable | n (%) |
|---|---|
| Age (years), median (range) | 56 (16-87) |
| Sex (male/female) | 340/174 |
| BMI (kg/m2), mean±SD | 26.8±5.5 |
| Tumor size (mm), mean±SD | 43±17.6 |
| CCI, median (range) | 1 (0-7) |
| Clinical symptoms | |
| Asymptomatic | 395 (76.8) |
| Local | 108 (21.1) |
| Systemic | 11 (2.1) |
| Single kidney | 13 (2.5) |
| Bilateral tumor | 14 (2.7) |
| Tumor side | |
| Right | 238 (46.3) |
| Left | 276 (53.7) |
| Face of tumor | |
| Anterior | 265 (51.6) |
| Posterior | 249 (48.4) |
| Polar location of tumor | |
| Upper | 136 (26.5) |
| Mid | 257 (50) |
| Lower | 121 (23.5) |
| Preoperative hemoglobin (g/dL), median (range) | 14 (7.5-19) |
| Preoperative creatinine (mg/dL), median (range) | 0.9 (0.5-9.7) |
| Preoperative eGFR (ml/min), median (range) | 80.5 (4-190) |
| Median PADUA risk score | |
| 10 | 259 (50.4) |
| 11 | 158 (30.7) |
| 12 | 80 (15.6) |
| 13 | 17 (3.3) |
| Number of lesions operated | |
| 1 | 502 (97.7) |
| 2 | 10 (1.2) |
| 3 | 1 (0.2) |
| 4 | 1 (0.2) |
SD=Standard deviation, BMI=Body mass index, eGFR=Estimated glomerular filtration rate, CCI=Charlson Comorbidity Index, PADUA=Preoperative aspects and dimensions used for an anatomical