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. 2023 Aug 24;9:e45212. doi: 10.2196/45212

Table 3.

Performance metrics for external validation for survival period.

Survival period	Overall^a	Baseline^a	Within 1 years^a	Between 1 and 2 years^b	Between 2 and 3 years^a	Between 4 and 5 years^a
AUC^c	0.800	0.799	0.778	0.816	0.863	0.779
Accuracy	0.810	0.737	0.729	0.756	0.786	0.742
F1 score	0.866	0.750	0.734	0.748	0.794	0.621
Sensitivity	0.870	0.810	0.702	0.734	0.853	0.625
Specificity	0.667	0.668	0.759	0.778	0.723	0.801

^aObserved using CatBoost algorithm.

^bObserved using a gradient boosting algorithm.

^cAUC: area under the curve.