Table 2.
Survival analysis performance (Ctd-index) on the Mayo cohort test set
| Task: Ischemic | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Models | 1-M | 2-M | 3-M | 6-M | 9-M | 12-M | ||||||
| Ctd-indexa | p-valueb | Ctd-index | p-value | Ctd-index | p-value | Ctd-index | p-value | Ctd-index | p-value | Ctd-index | p-value | |
| DeepSurv | 0.83 (0.80-0.85) | 0.422 | 0.84 (0.83–0.85) | <0.001 | 0.84 (0.83–0.85) | <0.001 | 0.84 (0.83–0.85) | <0.001 | 0.83 (0.82–0.84) | <0.001 | 0.82 (0.81–0.83) | <0.001 |
| DeepHit | 0.80 (0.78–0.82) | 0.008 | 0.84 (0.84–0.85) | <0.001 | 0.85 (0.84–0.86) | <0.001 | 0.85 (0.85–0.86) | <0.001 | 0.84 (0.83–0.85) | <0.001 | 0.83 (0.82–0.84) | <0.001 |
| Transformer-DAPT | 0.84 (0.81–0.86) | Reference | 0.86 (0.86–0.87) | Reference | 0.87 (0.86–0.87) | Reference | 0.87 (0.86–0.88) | Reference | 0.86 (0.85–0.86) | Reference | 0.85 (0.84–0.85) | Reference |
| Task: Bleeding | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Models | 1-M | 2-M | 3-M | 6-M | 9-M | 12-M | ||||||
| Ctd-indexa | p-valueb | Ctd-index | p-value | Ctd-index | p-value | Ctd-index | p-value | Ctd-index | p-value | Ctd-index | p-value | |
| DeepSurv | 0.76 (0.66–0.85) | 0.004 | 0.77 (0.74– 0.8) | <0.001 | 0.76 (0.73–0.79) | <0.001 | 0.76 (0.74–0.78) | <0.001 | 0.73 (0.71–0.75) | <0.001 | 0.71 (0.69–0.73) | <0.001 |
| DeepHit | 0.84 (0.75–0.91) | 0.100 | 0.82 (0.79–0.84) | <0.001 | 0.81 (0.79–0.83) | <0.001 | 0.81 (0.79–0.82) | <0.001 | 0.78 (0.77–0.80) | <0.001 | 0.76 (0.74–0.77) | <0.001 |
| Transformer-DAPT | 0.88 (0.83–0.93) | Reference | 0.87 (0.86–0.89) | Reference | 0.87 (0.86–0.88) | Reference | 0.87 (0.86–0.88) | Reference | 0.84 (0.82–0.85) | Reference | 0.81 (0.79–0.82) | Reference |
Ctd-index, time-dependent concordance index.
aThe model performance (Ctd-index) was calculated by employing bootstrapping on the test dataset.
bp-values represent statistical comparison between each model and the reference model (Transformer-DAPT), determined using bootstrap-based statistical testing with 1000 resamples. Lower p-values indicate significant performance differences compared with the reference model.