Biomarker Extraction Based on Subspace Learning for the Prediction of Mild Cognitive Impairment Conversion

Table 1

Characteristics of the subjects.

Variables	NC	MCI		AD
		sMCI	pMCI
No. of subjects (male/female)	165 (78/87)	95 (63/32)	126 (73/53)	142 (72/70)
Age
CDR	0	0.5	0.5	0.5/1
MMSE

CDR: Clinical Dementia Rating; MMSE: Mini-Mental State Examination.