Table 1 Demographics, cognitive and functional characteristics on the included subsample extracted from the ADNI cohort. Total number of subjects, gender distribution, mean, range and standard deviations (SD) of age, education level, length of participation and functional and cognitive measures are given separately for the training and test sets in the two subgroups (sMCI and cAD)
From: Functional activity level reported by an informant is an early predictor of Alzheimer’s disease
sMCI (360) | cAD (320) | |
|---|---|---|
Train (285)/Test (75) | Train (255)/Test (65) | |
Demographics | ||
Sex (F:M) | 114:171/32:43 | 99:156/25:40 |
Age at inclusion [years]: mean (SD) | 73.9 (7.4)/72.7(7.3) | 73.9 (7.7)/73.9 (6.9) |
Age at inclusion [years]: range | 55-91/57.8-87.8 | 55.2-88.3/55-88.4 |
Education [years]: mean (SD) | 15.8 (2.9)/16.2(2.9) | 15.8 (2.9)/16.2(2.9) |
Participation length [years]: mean (SD) | 4.6 (2.8)/4.5(2.7) | 5.0 (2.7)/5.5(2.8) |
Cognitive function | ||
RAVLT immediate recall: mean number (SD) | 36.9(10)/36.8(9) | 28.8(7.8)/30.7(6.9 |
RAVLT delayed: mean number (SD) | 4.9(3.9)/4.6(3.6) | 1.9(2.6)/2.4(2.7) |
RAVLT recognition: mean number (SD) | 11.2(3.2)/11.4(3.0) | 9.3(3.5)/9.8(3.6) |
TMTA: mean seconds (SD) | 39(16)/38(12) | 44(20)/44(26) |
TMTB: mean seconds (SD) | 109(60)/102(44) | 134(72)/132(81) |
CFT animals: mean number (SD) | 17.7(5.1)/18.1(5.0) | 15.8(4.9)/15.6(4.3) |
Functional level | ||
FAQ Total: mean (SD) | 1.9(2.9)/2.4(4.6) | 4.9(4.5)/4.5(4.6) |
GDS: mean (SD) | 1.6(1.5)/1.8(1.3) | 1.7(1.4)/1.4(1.2) |