| Characteristic | Training Dataset | P | |
| Status = 0 (n = 316) | Status = 1 (n = 389) | ||
| Gender, No. (%) |
|
| 0.23 |
| Male | 75 (23.7%) | 77 (19.8%) |
|
| Female | 241 (76.3%) | 312 (80.2%) |
|
| Age, No. (%), years |
|
| <0.01 |
| ≤60 | 197 (62.3%) | 180 (46.3%) |
|
| >60 | 119 (37.7%) | 209 (53.7%) |
|
| Part, No. (%), |
|
| <0.01 |
| Bottom | 79 (25.0%) | 84 (21.6%) |
|
| Antrum | 179 (56.6%) | 178 (45.8%) |
|
| Esophageal connection | 50 (15.8%) | 107 (27.5%) |
|
| Multiple parts | 8 (2.5%) | 20 (5.1%) |
|