Table 2 Comparisons of patient features in the pseudo overall cohort after OW
Feature | PN (N = 317) | RN (N = 317) | P value |
|---|---|---|---|
Sex | |||
 Male | 209 (66) | 209 (66) | 1.000 |
 Female | 108 (34) | 108 (34) |  |
Age (years) | 54.0 (46.0–62.0) | 54.0 (46.0–62.0) | 1.000 |
Side | |||
 Left | 151 (48) | 151 (48) | 1.000 |
 Right | 166 (52) | 166 (52) |  |
Tumor size (cm) | 4.0 (3.0–4.7) | 4.0 (3.0–4.8) | 1.000 |
cT Stage | |||
 1a | 180 (57) | 180 (57) | 1.000 |
 1b | 137 (43) | 137 (43) |  |
pT Stage | |||
 1a | 180 (57) | 180 (57) | 1.000 |
 1b | 137 (43) | 137 (43) |  |
Surgical approach | |||
 Open | 31 (10) | 31 (10) | 1.000 |
 Laparoscopic | 285 (90) | 285 (90) |  |
Lumbago | |||
 No | 278 (88) | 278 (88) | 1.000 |
 Yes | 38 (12) | 38 (12) |  |
Hematuresis | |||
 No | 299 (94) | 299 (94) | 1.000 |
 Yes | 18 (6) | 18 (6) |  |
Cardiovascular disease | |||
 No | 232 (73) | 232 (73) | 1.000 |
 Yes | 85 (27) | 85 (27) |  |
Smoking status | |||
 Never | 235 (74) | 235 (74) | 1.000 |
 < 10 years | 18 (6) | 18 (6) |  |
 10–19 years | 32 (10) | 32 (10) |  |
 20–29 years | 19 (6) | 19 (6) |  |
 ≥ 30 years | 12 (4) | 12 (4) |  |
Preoperative eGFR | 74.3 (60.6–89.8) | 75.9 (60.6–91.7) | 1.000 |
Preoperative eGFR status | |||
 ≥ 90 | 78 (25) | 85 (27) | 0.813 |
 60–90 | 164 (52) | 154 (49) |  |
 30–60 | 70 (22) | 70 (22) |  |
 15–30 | 3 (1) | 6 (2) |  |
 ≤ 15 | 1 (0) | 1 (0) |  |
aCCI score | 2.0 (2.0–2.0) | 2.0 (2.0–2.0) | 1.000 |
ECOG performance status | |||
 0 | 158 (50) | 158 (50) | 1.000 |
 1 | 134 (42) | 134 (42) |  |
 2 | 24 (8) | 24 (8) |  |
 3 | 1 (0) | 1 (0) |  |
BMI | 23.7 (21.9–26.4) | 23.7 (21.6–25.8) | 1.000 |
Radiographic evidence of hemorrhage | |||
 No | 302 (95) | 302 (95) | 1.000 |
 Yes | 14 (4) | 14 (4) |  |
Radiographic evidence of cysts degeneration | |||
 No | 294 (93) | 294 (93) | 1.000 |
 Yes | 23 (7) | 23 (7) |  |
Radiographic evidence of calcification | |||
 No | 308 (97) | 308 (97) | 1.000 |
 Yes | 8 (3) | 8 (3) |  |
Radiographic evidence of necrosis | |||
 No | 313 (99) | 313 (99) | 1.000 |
 Yes | 4 (1) | 4 (1) |  |
Nuclear Grade | |||
 1 | 75 (24) | 87 (27) | 0.571 |
 2 | 177 (56) | 163 (51) |  |
 3 | 55 (17) | 53 (17) |  |
 4 | 10 (3) | 13 (4) |  |