Table 1. Summary of patient characteristics.
| Variable | Value |
|---|---|
| N | 274 |
| Median, interquartile range: | |
| Age at surgery, years | 72 (63–77) |
| Body mass index, kg/m2 | 27 (24–30) |
| N (%): | |
| Male gender | 171 (62) |
| Tumour location | |
| Not seen | 10 (4) |
| Pelvis | 181 (66) |
| Ureter | 83 (30) |
| Local invasion on imaging (n = 269) | 41 (15) |
| Hydronephrosis on imaging (n = 272) | 139 (51) |
| Cytology | |
| Negative | 58 (21) |
| Positive | 203 (74) |
| Not done | 13 (5) |
| Ureteroscopy high-grade (n = 172)* | 120 (70) |
| Previous non-muscle invasive bladder cancer | 93 (34) |
| Pathological T stage | |
| ≤pT1 | 141 (51) |
| pT2 | 58 (21) |
| ≥pT3 | 75 (27) |
Local invasion on imaging = parenchymal, renal sinus fat or periureteric invasion.
*
Because we only have ureteroscopy biopsy data for 172 patients, all models that include preoperative high-grade as a predictor are limited to this subgroup.