Table 1.

Demographic Information for Alzheimer's Disease Neuroimaging Initiative Subjects Scanned with Diffusion Magnetic Resonance Imaging

	Controls	eMCI	lMCI	AD	Total
N	28	57	11	15	111
Age	73.0	73.7	76.3	75.6	73.7
Sex	14M/14F	34M/23F	7M/4F	9M/6F	64M/47F

One hundred eleven subjects had been scanned at the time of writing (December 2012). Their minimum age was 55.3 and maximum age was 90.4. Based on a t-test, the control group did not differ in age from any of the cognitively impaired groups. p-Values from t-tests comparing the mean age of the controls to the ages of the eMCI, lMCI and AD groups were 0.67, 0.094, and 0.30.

AD, Alzheimer's disease; eMCI, early mild cognitive impairment; lMCI, late mild cognitive impairment.