Table 5 Performance of the models on unforeseen test data
Indication | Model | Mean absolute percentage error (%) | Root mean squared error (min) | Mean absolute error (min) |
|---|---|---|---|---|
Hip (n = 271) | XGBoost | 23.30 (20.89–25.92) | 15.75 (13.53–18.02) | 10.87 (9.76–12.05) |
Linear multivariable regression | 24.59 (21.83–27.61) | 16.00 (13.65–18.49) | 11.13 (10.02–12.29) | |
Knee (n = 184) | XGBoost | 21.04 (18.49–23.87) | 17.91 (13.96–22.01) | 12.53 (11.04–14.15) |
Linear multivariable regression | 27.08 (23.33–31.22) | 20.23 (16.06–24.4) | 13.64 (11.89–15.52) |