Table 1.

Demographics.

	Older (n = 21)	Young (n = 24)
Age	65.4 ± 2.5	25.3 ± 2.8
Gender	13 (61.9% female)	12 (50%) female
Race/ ethnicity*
Hispanic	0	1
White	14	12
Black or African-American	7	7
Asian	0	3
Education in years	15.5 ± 3.3	15.5 ± 2.1
NART verbal IQ	118.5 ± 10.2	112.9 ± 8.4
NART performance IQ	116.6 ± 7.2	112.6 ± 5.9
WAIS voc	52.6 ± 11.8	48.9 ± 12.7
WTAR	39.8 ± 10.6	38.8 ± 8.2
Mattis DRS Total	140.5 ± 3.1	141.5 ± 2.2

^*Missing ethnicity data on one young subject