Training set | Internal validation set | External validation set | |
---|---|---|---|
Number of patients | 148 | 485 | 511 |
Patient demographics | |||
Median age (min-max) | 58 (16–89) | 59 (16–86) | 68 (31–90) |
Male (number, %) | 91 (61.5%) | 290 (59.8%) | 270 (52.8%) |
Localization | |||
Colon | 77 (52.0%) | 221(45.6%) | 379 (74.2%) |
Rectum | 71 (48.0%) | 264 (54.4%) | 132 (25.8%) |
Stage | |||
Stage I | 22 (14.9%) | 99 (20.4%) | 106 (20.7%) |
Stage II | 64 (43.2%) | 178 (36.7%) | 224 (43.8%) |
Stage III | 62 (41.9%) | 208 (42.9%) | 181 (35.4%) |
ER-α expression | |||
High (number, %) | 19 (12.8%) | 78 (16.1%) | 158 (30.9%) |
Low (number, %) | 129 (87.2%) | 407 (83.9%) | 353 (69.1%) |
PR expression | |||
High (number, %) | 32 (21.6%) | ||
Low (number, %) | 116 (78.4%) |