Table 2.
Demographic characteristics of diagnostic groups in DTI subsample.
| HC (n = 88) | SCD (n = 88) | MCI (n = 40) | ADD (n = 27) | |
|---|---|---|---|---|
| Amyloid Status (+/-/n.a.) | 16/18/54 | 20/19/49 | 21/7/12 | 4/9/14 |
| Gender (m/f)1 | 52/36 | 43/45 | 13/27 | 17/10 |
| Age (SD)2 | 68.5 (5.1) | 71.5 (5.6) | 72.3 (5.9) | 72.4 (5.8) |
| Education Years (SD)3 | 15.2 (2.6) | 14.7 (3.1) | 14.2 (3.0) | 13.5 (2.7) |
| MMSE4 | 29.5 (0.8) | 29.3 (0.9) | 27.9 (1.6) | 23.1 (3.4) |
| GDS5 | 0.7 (1.5) | 1.8 (1.5) | 1.8 (2.0) | 1.8 (1.6) |
MMSE, Mini Mental State Examination; GDS, Geriatric Depression Scale. n.a., not available.
1
Significantly different between groups, x2 = 9.5, df = 3, p = 0.024. 2Significantly different between groups, F (3, 239) = 7.1, p < 0.001. 3Significantly different between groups, F (3, 239) = 2.7, p = 0.044. 4 Significantly different between groups, Welch’s F (3, 74.4) = 41.8, p < 0.001 .5 Significantly different between groups, F (3, 231) = 8.5, p < 0.001.