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Table 3 Performance metrics for predicting revision of TKA using Cox, Weibull parametric, flexible parametric, and random survival forest models

From: A comparison of survival models for prediction of eight-year revision risk following total knee and hip arthroplasty

TKA

Modelling Approach

c-index

Integrated calibration index (× 100)

Integrated Index of Prediction Accuracy

Cox

0.643 (0.641, 0.645)

0.16 (0.15, 0.18)

0.056 (0.054, 0.057)

Weibull

0.642 (0.641, 0.644)

0.17 (0.16, 0.19)

0.054 (0.053, 0.056)

Flexible parametric

0.643 (0.641, 0.645)

0.17 (0.15, 0.18)

0.056 (0.054, 0.057)

Random survival forest

0.643 (0.642, 0.645)

0.27 (0.25, 0.29)

0.055 (0.054, 0.056)