Table 3.
Clinical characteristics of different diagnostic groups in the validation set
| NC (n = 52) | SCD (n = 103) | MCI (n = 54) | AD dementia (n = 204) | Non-AD dementia (n = 135) | Other (n = 130) | |
|---|---|---|---|---|---|---|
| Gender, female (%) | 30 (57.7%) | 43 (41.7%) | 18 (33.3%) | 111 (54.4%) | 57 (42.2%) | 42 (32.3%) |
| Age, M (SD) | 70.5 (7.6) | 62.8 (10.2) | 69.8 (9.3) | 66.9 (8.9) | 66.5 (8.5) | 60.8 (9.9) |
| MMSE score, M (SD) | NA | 27.3 (2.2) | 26.6 (2.1) | 20.1 (4.8) | 23.7 (4.4) | 25.3 (4.3) |
| DAD score, M (SD) | NA | 91.0 (12.6) | 86.5 (14.3) | 78.2 (20.6) | 75.7 (25) | 76.6 (23.7) |
Abbreviations: AD, Alzheimer's disease; DAD, Disability Assessment for Dementia (lower scores reflect more dysfunction in activities of daily living); MCI, mild cognitive impairment; MMSE, Mini–Mental State Examination (higher scores reflect better cognitive functioning); NA, not available for this cohort; NC, normal cognition; SCD, subjective cognitive decline; SD, standard deviation.