Table 6.

Classification performances of the proposed method with feature selection and without feature selection

Method	AD vs. HC			MCI vs. HC
	ACC (%)	SEN (%)	SPEC (%)	ACC (%)	SEN (%)	SPEC (%)
Without feature selection	97.12	98.08	94.12	87.09	75.00	91.92
t‐test‐based feature selection	96.11	98.01	92.12	86.15	75.12	91.95
LASSO‐based feature selection	96.03	97.01	91.13	86.17	75.15	91.96

Note. Feature selection was performed based on a paired t‐test between two groups (AD vs. HC or MCI vs. HC) or LASSO only using training samples.