Table 1.

Demographics and characteristics of all participants.

	YN	CN	MCI
n	45	141	21
Age (years)	21.4±2.3 (18–27)	73.9±7.1 (60–90)	77.2±8.2 (61–90)
Sex (% Female)	71.1	73.1	42.9
Race (% White)	73.3	76.9	95.2
Education (years)	14.4±1.6 (12–18)	16.1±2.9 (5–20)	17.0±1.9 (14–20)
AMNART IQ	122.0±4.5 (111–131)	121.5±9.3 (80–132)	121.8±8.3 (99–131)
MMSE	29.7±0.7 (27–30)	29.0±1.2 (25–30)	27.3±1.7 (24–29)
FCSRT free recall	38.6±3.5 (28–46)	33.1±4.5 (25–47)	15.1±8.3 (3–24)
FCSRT cued recall	47.9±0.3 (47–48)	47.8±0.5 (46–48)	36.6±11.9 (13–48)
TMT-A (sec)	20.7±5.9 (12–36)	39.5±15.4 (12–95)	38.8±16.3 (16–72)
TMT-B (sec)	45.7±10.9 (27–68)	93.3±48.4 (26–300)	105.8±57.5 (41–230)

AMNART IQ (American National Adult Reading Test intelligence quotient), CN (clinically normal elderly), MCI (mild cognitive impairment), MMSE (Mini-Mental State Exam), FCSRT (Free and Cued Selective Reminding Test), TMT (Trailmaking Test), YN (young normal).

Values represent mean ± standard deviation (except for n, Sex, and Race).