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Table 3: The classification results of the PLS-DA discriminant analysis
Group 1 Group 2 Q²^* Sensitivity Specificity
FTD PNFA 0.251 92% (11/12) 89% (8/9)
FTD SD 0.788 100% (12/12) 100% (13/13)
SD PNFA 0.605 86% (11/13) 100% (9/9)
Note:—PLS-DA indicates partial least squares discriminant analysis.
* Q² value >0.05 is regarded as significant value for a principal component.
Group 1	Group 2	Q²^*	Sensitivity	Specificity
FTD	PNFA	0.251	92% (11/12)	89% (8/9)
FTD	SD	0.788	100% (12/12)	100% (13/13)
SD	PNFA	0.605	86% (11/13)	100% (9/9)