Table 3 Risk factor analysis of IVR in 1 year after RNU
Variables | No IVR n = 60 (%) | IVR n = 10 (%) | p-value | |
|---|---|---|---|---|
Age (years) | ≥ 70 | 42 (70.0) | 5 (50.0) | 0.2790 |
Gender | Male | 45 (75.0) | 8 (80.0) | 1.0000 |
Laterality | Right | 32 (53.3) | 4 (40.0) | 0.5079 |
Location of main tumor | Ureter | 25 (41.7) | 6 (60.0) | 0.3203 |
Hydronephrosis | Yes | 19 (31.7) | 3 (30.0) | 1.0000 |
Urine cytology | Positive | 24 (40.0) | 7 (70.0) | 0.0956 |
Urinary BTA | Positive | 22 (36.7) | 6 (60.0) | 0.1833 |
Urinary NMP22 | Positive | 28 (46.7) | 5 (50.0) | 1.0000 |
Diagnostic ureteroscopic biopsy | Yes | 18 (30.0) | 5 (50.0) | 0.2790 |
Multifocality | Multiple | 6 (10.0) | 3 (30.0) | 0.1120 |
Tumor size (cm) | ≥ 3 | 29 (48.3) | 3 (30.0) | 0.3263 |
Pathological T stage | ≥ 3 | 19 (31.7) | 5 (50.0) | 0.2945 |
Grade | 3 | 29 (48.3) | 5 (50.0) | 1.0000 |
LVI | Positive | 15 (25.0) | 2 (20.0) | 1.0000 |
INF | b, c | 41 (68.3) | 9 (90.0) | 0.2618 |
Pneumoretroperitoneum time (min) | ≥ 210 | 24 (40.0) | 8 (80.0) | 0.0358* |
Total operating time (min) | ≥ 360 | 25 (41.7) | 6 (60.0) | 0.3203 |
ASC | Yes | 19 (31.7) | 4 (40.0) | 0.7192 |