Table 2 The distribution of clinical and radiologic characteristics in the training and test cohorts
Characteristics | Training cohort (n = 137) | Test cohort (n = 59) | ||||
|---|---|---|---|---|---|---|
MIBC | NMIBC | p | MIBC | NMIBC | p | |
Age, mean ± SDa, years | 68.735 ± 11.043 | 67.406 ± 11.363 | 0.489 | 68.034 ± 7.744 | 66.5 ± 9.497 | 0.500 |
Sex | 0.604 | 0.937 | ||||
Male | 57 (83.8%) | 60 (87.0%) | 21 (72.4%) | 22 (73.3%) | ||
Female | 11 (16.2%) | 9 (13.0%) | 8 (27.6%) | 8 (26.7%) | ||
Smoking | 0.745 | 0.842 | ||||
Yes | 51 (75%) | 57 (82.6%) | 15 (51.7%) | 22 (73.3%) | ||
No | 17 (25%) | 12 (17.4%) | 14 (48.3%) | 8 (26.7%) | ||
Clinical complaint | 0.719 | 0.358 | ||||
Hematuria | 43 (63.2%) | 39 (56.5%) | 17 (58.6%) | 14 (46.7%) | ||
Hydronephrosis | 1 (1.5%) | 1 (1.4%) | 0 (0%) | 0 (0%) | ||
Incidental findings | 24 (35.3%) | 29 (42.0%) | 12 (41.4%) | 16 (53.3%) | ||
Number of lesions | 0.179 | 0.297 | ||||
Multiple | 18 (26.5%) | 27 (39.1%) | 6 (20.7%) | 7 (23.3%) | ||
Single | 50 (73.5%) | 42 (60.9%) | 23 (79.3%) | 23 (76.7%) | ||
Histopathologic grade | 0.000 | 0.001 | ||||
High grade | 63 (92.6%) | 29 (42.0%) | 25 (86.2%) | 13 (43.3%) | ||
Low grade | 5 (7.4%) | 40 (58.0%) | 4 (13.8%) | 17 (56.7%) | ||
Calcification | 0.633 | 0.365 | ||||
Yes | 22 (32.4%) | 25 (36.2%) | 13 (44.8%) | 10 (33.3%) | ||
No | 46 (67.6%) | 44 (63.8%) | 16 (55.2%) | 20 (66.7%) | ||
Lesion length, mm | 17.045 ± 9.516 | 15.425 ± 8.341 | 0.191 | 19.851 ± 10.925 | 17.670 ± 9.812 | 0.14 |
Tortuous blood vessels | 0.000 | 0.000 | ||||
Yes | 41 (60.3%) | 17 (24.6%) | 18 (62.1%) | 5 (16.7%) | ||
No | 27(39.7%) | 52 (75.4%) | 11 (37.9%) | 25 (83.3%) | ||