Table 3.
Multivariate Cox proportional hazard regression analysis for PFS on the training, internal validation, and external validation cohorts
| Characteristics | Training cohort | Internal validation cohort | External validation cohort | |||
|---|---|---|---|---|---|---|
| HR (95% CI) | P value | HR (95% CI) | P value | HR (95% CI) | P value | |
| TNM stage | ||||||
| III | Reference | - | Reference | - | Reference | - |
| IVa | 1.464 (0.986–2.174) | 0.058 | 1.229 (0.516–2.929) | 0.642 | 1.786 (0.930–3.432) | 0.082 |
| AutoRadio-Score | 1.491 (1.314–1.693) | < 0.001 | 1.679 (1.029–2.738) | 0.038 | 1.489 (1.102–2.012) | 0.010 |
| DeepMTS-Score | 4.193 (3.074–5.718) | < 0.001 | 2.455 (1.399–4.308) | 0.002 | 1.520 (1.037–2.229) | 0.032 |
P value less than 0.05 was in bold
PFS progression-free survival, HR hazard ratio, CI confidence interval