Table 1 Patient characteristics of the two groups
Variables | AAN(n = 42) | NON-AAN(n = 238) | P Value |
|---|---|---|---|
Age (year) | 68.0 (52–81) | 67.2 (32–79) | 0.62 |
Gender, n (%) |  |  | < 0.001 |
 Male | 11 (26.2) | 142 (59.7) |  |
 Female | 31 (73.8) | 96 (40.3) |  |
End-stage renal disease |  |  | < 0.001 |
 Yes | 14 (33.3) | 11 (4.6) |  |
 No | 28 (66.7) | 227 (95.4) |  |
Tumor location, n (%) | Â | Â | 0.89 |
 Renal pelvis | 23 (54.7) | 112 (62.7) |  |
 Ureter | 19 (45.3) | 126 (37.3) |  |
 Upper | 4 (23.1) | 36 (29.0) |  |
 Middle | 9 (46.2) | 60 (47.4) |  |
 Lower | 6 (30.7) | 30 (23.6) |  |
Previous bladder tumor n (%) | Â | Â | 0.40 |
 Yes | 5 (11.9) | 21 (9.3) |  |
 No | 37 (88.1) | 217 (91.7) |  |
Hydronephrosis | Â | Â | Â |
 Yes | 27 (64.3) | 156 (65.5) | 0.87 |
 No | 15 (35.7) | 82 (34.5) |  |
pT stage, n (%) | Â | Â | 0.79 |
 pTa | 1 (2.4) | 7 (2.8) |  |
 pT1 | 19 (45.2) | 109 (45.8) |  |
 pT2 | 15 (35.7) | 86 (36.1) |  |
 pT3 | 4 (9.5) | 26 (11.1) |  |
 pT4 | 3 (7.2) | 10 (4.2) |  |
pN stage, n (%) | Â | Â | 0.12 |
 pN0 | 38 (90.7) | 205 (86.1) |  |
 pN1 | 4 (9.3) | 33 (13.9) |  |
Grade, n (%) | Â | Â | 0.11 |
 Low | 18 (42.8) | 102 (43.1) |  |
 High | 24 (57.1) | 136 (56.9) |  |
Surgical approach, n (%) | Â | Â | 0.40 |
 Laparoscopic | 36 (85.7) | 212 (89.1) |  |
 Open | 6 (14.3) | 26 (10.9) |  |
Mean operative time (min) | 142.3 ± 26.4 | 146.0 ± 32.5 | 0.31 |
Mean estimate blood loss (ml) | 207.8 ± 78.3 | 194.5 ± 90.0 | 0.06 |
Complications (Clavien Grade), n (%) | Â | Â | 0.003 |
 None | 20 (47.6) | 163 (68.5) |  |
 1 | 11 (26.2) | 43 (18.1) |  |
 2 | 7 (16.7) | 28 (11.8) |  |
 3 | 1 (2.4) | 3 (1.3) |  |
 4 | 3 (7.1) | 1 (0.4) |  |
 5 | 0 (0) | 0 (0) |  |