TABLE 1.
Initial demographic characteristics of each diagnostic subgroup and the entire sample at the first of two consecutive annual evaluations
| N | Sex (% male) | Age (years) | Education (years) | Race (% AA) | MMSE | |
|---|---|---|---|---|---|---|
| Control | 200 | 37 | 71.6(8.5) | 16.5 (2.9) | 12 | 29.3 (1.0) |
| MCI | 137 | 42 | 70.0 (8.3) | 15.1 (3.3) | 23 | 28.4(1.7) |
| AD | 41 | 44 | 77.8 (7.8) | 13.7 (3.2) | 17 | 23.4(3.1) |
| Total | 378 | 39 | 71.7(8.7) | 15.7 (3.2) | 17 | 28.3 (2.4) |
Note. Standard deviations in parentheses. AA = African-American; MMSE = Mini Mental State Examination; MCI = mild cognitive impairment; AD = Alzheimer’s disease.