Table 1 Baseline clinical characteristics of urothelial bladder cancer patients
Training group(N = 51,284) | Validation group (N = 21,980) | Overall (N = 73,264) | X2 | P | |
|---|---|---|---|---|---|
Age, years | 0.636 | 0.888 | |||
< 50 | 2303 (4.5%) | 1016 (4.6%) | 3319 (4.5%) | ||
50–59 | 6847 (13.4%) | 2924 (13.3%) | 9771 (13.3%) | ||
60–69 | 13,568 (26.5%) | 5803 (26.4%) | 19,371(26.4%) | ||
> 69 | 28,566 (55.7%) | 12,237 (55.7%) | 40,803(55.7%) | ||
Sex | 0.512 | 0.474 | |||
Female | 12,614 (24.6%) | 5351 (24.3%) | 17,965(24.5%) | ||
Male | 38,670 (75.4%) | 16,629 (75.7%) | 55,299(75.5%) | ||
Race | 4.588 | 0.205 | |||
American Indian/Alaska Native | 180 (0.4%) | 62 (0.3%) | 242 (0.3%) | ||
Asian or Pacific Islander | 2318 (4.5%) | 954 (4.3%) | 3272 (4.5%) | ||
Black | 2729 (5.3%) | 1130 (5.1%) | 3859 (5.3%) | ||
White | 46,057 (89.8%) | 19,834 (90.2%) | 65,891(89.9%) | ||
Grade | 1.395 | 0.707 | |||
I | 6511 (12.7%) | 2821 (12.8%) | 9332 (12.7%) | ||
II | 14,738 (28.7%) | 6245 (28.4%) | 20,983(28.6%) | ||
III | 10,123 (19.7%) | 4398 (20.0%) | 14,521(19.8%) | ||
IV | 19,912 (38.8%) | 8516 (38.7%) | 28,428(38.8%) | ||
T | 0.161 | 0.688 | |||
Ta/Tis/T1 | 37,188 (72.5%) | 15,971 (72.7%) | 53,159(72.6%) | ||
T2/T3/T4 | 14,096 (27.5%) | 6009 (27.3%) | 20,105(27.4%) | ||
N | 1.042 | 0.791 | |||
N0 | 48,360 (94.3%) | 20,701 (94.2%) | 69,061(94.3%) | ||
N1 | 1445 (2.8%) | 620 (2.8%) | 2065 (2.8%) | ||
N2 | 1415 (2.8%) | 634 (2.9%) | 2049 (2.8%) | ||
N3 | 64 (0.1%) | 25 (0.1%) | 89 (0.1%) | ||
M | 0.765 | 0.382 | |||
M0 | 49,775 (97.1%) | 21,360 (97.2%) | 71,135(97.1%) | ||
M1 | 1509 (2.9%) | 620 (2.8%) | 2129 (2.9%) | ||
Histologic Type (transitional cell cancer) | 3.176 | 0.365 | |||
NOS (8120) | 13,695 (26.7%) | 5867 (26.7%) | 19,562(26.7%) | ||
Spindle cells (8122) | 255 (0.5%) | 99 (0.5%) | 354 (0.5%) | ||
Papillary (8130) | 37,173 (72.5%) | 15,960 (72.6%) | 53,133(72.5%) | ||
Micropapillary (8131) | 161 (0.3%) | 54 (0.2%) | 215 (0.3%) | ||
Tumor size, mm | 0.599 | 0.897 | |||
<30 | 21,659 (42.2%) | 9304 (42.3%) | 30,963(42.3%) | ||
30–49 | 16,088 (31.4%) | 6929 (31.5%) | 23,017(31.4%) | ||
50–99 | 12,641 (24.6%) | 5360 (24.4%) | 18,001(24.6%) | ||
>99 | 896 (1.7%) | 387 (1.8%) | 1283 (1.8%) | ||