Table 8. Regression results for the prediction of the duration of diabetes type 2 on the AlOlaiwi2018 dataset.

These results refer to the same abbreviation meanings and execution details of Table 7 caption.

Method	R 2	RMSE	MAE	MSE	SMAPE
Random forests	*0.35 ± 0.02	*5.64 ± 0.11	*4.60 ± 0.10	*31.85 ± 1.30	*0.47 ± 0.01
XGBoost	0.25 ± 0.06	6.07 ± 0.24	4.67 ± 0.21	36.91 ± 2.98	0.49 ± 0.02
Linear regression	0.09 ± 0.07	6.67 ± 0.27	5.18 ± 0.21	44.54 ± 3.67	0.52 ± 0.02
Decision trees	−0.21 ± 0.15	7.71 ± 0.47	5.98 ± 0.39	59.69 ± 7.32	0.61 ± 0.04