Table 1.

Demographic and neuropsychological characteristics of participant groups

Dementia, including ADAD onlyNondementia
Means (SD) are presented except for sample size and sex.
BIMC = Blessed Information Memory Concentration test; WAIS-R = Wechsler Adult Intelligence Scale–Revised; MIS = Memory Impairment Screen.
Sample size5039433
Age, y81.4 (7.0)81.1 (7.3)79.3 (6.1)
Education, y11.0 (3.6)11.3 (3.5)12.2 (3.2)
Sex, % male343336
WAIS-R verbal IQ86.5 (14.3)87.03 (15.1)105.8 (13.2)
Zung Depression Scale52.3 (11.5)52.1 (11.8)46.2 (10.7)
BIMC errors14.7 (5.7)15.1 (5.5)2.8 (2.6)
MIS score2.5 (2.3)2.1 (1.9)7.2 (1.2)