Table 2 Histopathological factors recorded by the local and review pathologists.
Variables | Local pathologist (N = 377) | Review pathologist (N = 377) | p-valuea | ||
|---|---|---|---|---|---|
N | % | N | % | ||
Grade | |||||
 Not mentioned | 4 | (1.1) | 2 | (0.5) |  < 0.001** |
 Low grade | 49 | (13.0) | 93 | (24.7) |  |
 High grade | 324 | (85.9) | 282 | (74.8) |  |
Tumor location | |||||
 Renal pelvis | 184 | (48.8) | 185 | (49.1) | 0.510 |
 Ureter | 125 | (33.2) | 128 | (34.0) |  |
 Renal pelvis and ureter | 68 | (18.0) | 62 | (16.4) |  |
 N/A | 0 | (0.0) | 2 | (0.5) |  |
Tumor architecture | |||||
 Papillary | 220 | (58.4) | 237 | (62.9) | 0.005** |
 Non-papillary | 81 | (21.5) | 83 | (22.0) |  |
 Mixed | 59 | (15.6) | 55 | (14.6) |  |
 Not mentioned | 17 | (4.5) | 2 | (0.5) |  |
Invasiveness | |||||
 Non-invasive | 63 | (16.7) | 149 | (39.5) |  < 0.001** |
 Invasive | 313 | (83.0) | 226 | (59.9) |  |
 Not mentioned | 1 | (0.3) | 2 | (0.5) |  |
Variant histology | |||||
 Yes | 31 | (8.2) | 111 | (29.4) |  < 0.001** |
 No | 346 | (91.8) | 266 | (70.6) |  |
pT stage | |||||
 Tis/Ta/T0 | 63 | (16.7) | 153 | (40.6) |  < 0.001** |
 T1/T2 | 156 | (41.4) | 71 | (18.8) |  |
 T3/T4 | 158 | (41.9) | 153 | (40.6) |  |
Lymphovascular invasion | |||||
 Negative | 282 | (74.8) | 249 | (66.0) | 0.002** |
 Positive | 91 | (24.1) | 128 | (34.0) |  |
 Not mentioned | 4 | (1.1) | 0 | (0.0) |  |
Perineural invasion | |||||
 Negative/free | 306 | (81.2) | 327 | (86.7) |  < 0.001** |
 Positive | 28 | (7.4) | 50 | (13.3) |  |
 Not mentioned | 43 | (11.4) | 0 | (0.0) |  |
Surgical margin status | |||||
 Free | 356 | (94.4) | 335 | (88.9) | 0.01* |
 Not free | 18 | (4.8) | 40 | (10.6) |  |
 Not mentioned | 3 | (0.8) | 2 | (0.5) |  |
