Diagnosis of Alzheimer’s Disease Based on Structural MRI Images Using a Regularized Extreme Learning Machine and PCA Features

Table 1

Summary of subject’s demographic status.

	NC	MCI	AD
Number of subjects	70	74	70
Average age	76.3	74.5	76.0
Average education points	16.19	15.96	15.53
MMSE	29.2 ± 1.0	27.2 ± 1.7	23.2 ± 2.0