Table IV.

Depression Classification Results

No. Features	LOO Cross-Validation		10-fold Cross-Validation		5-fold Cross-Validation		3-fold Cross-Validation
	Accuracy	AUC	Accuracy	AUC	Accuracy	AUC	Accuracy	AUC
1	0.747 ± 0.016	0.810 ± 0.014	0.747 ± 0.016	0.811 ± 0.017	0.753 ± 0.027	0.812 ± 0.028	0.758 ± 0.022	0.824 ± 0.011
2	0.785 ± 0.016	0.833 ± 0.016	0.780 ± 0.011	0.837 ± 0.016	0.780 ± 0.027	0.825 ± 0.026	0.785 ± 0.022	0.855 ± 0.010
3	0.806 ± 0.005	0.867 ± 0.012	0.801 ± 0.016	0.867 ± 0.014	0.801 ± 0.022	0.859 ± 0.021	0.817 ± 0.022	0.885 ± 0.012
4	0.839 ± 0.016	0.882 ± 0.014	0.828 ± 0.016	0.871 ± 0.023	0.844 ± 0.022	0.878 ± 0.022	0.833 ± 0.016	0.900 ± 0.013
5	0.849 ± 0.016	0.878 ± 0.013	0.833 ± 0.022	0.876 ± 0.016	0.860 ± 0.022	0.889 ± 0.015	0.876 ± 0.011	0.909 ± 0.010
6	0.844 ± 0.016	0.871 ± 0.017	0.844 ± 0.016	0.879 ± 0.016	0.849 ± 0.022	0.887 ± 0.024	0.887 ± 0.016	0.919 ± 0.009
7	0.844 ± 0.016	0.869 ± 0.014	0.833 ± 0.016	0.869 ± 0.021	0.839 ± 0.054	0.885 ± 0.078	0.892 ± 0.011	0.908 ± 0.012
8	0.849 ± 0.016	0.879 ± 0.015	0.839 ± 0.016	0.869 ± 0.018	0.833 ± 0.027	0.882 ± 0.024	0.882 ± 0.022	0.908 ± 0.020
9	0.844 ± 0.016	0.867 ± 0.015	0.839 ± 0.016	0.872 ± 0.018	0.817 ± 0.027	0.855 ± 0.042	0.876 ± 0.016	0.899 ± 0.021

All values are presented as median ± IQR. Classification was performed using 100 iterations of group equalization for each left out participant or fold. 3-fold cross-validation was performed by splitting all the data for each participant into the three partitions to use for cross-validation.