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Descriptive statistics for the sample’s groups.
| Characteristics | SCD (n = 63) | aMCI (n = 182) | ADD (n = 243) | p |
|---|---|---|---|---|
| Mean (SD) | ||||
| Age | 67.30 (7.07) | 67.93 (7.48) | 74.19 (6.24) | <0.05 |
| Gender (Male/Female) | 12/51 | 47/135 | 83/160 | <0.05 |
| Years of education | 12.60 (7.07) | 12.06 (4.10) | 8.30 (4.34) | <0.05 |
| DSST | 41.13 (12.90) | 32.40 (13.25) | 13.46 (9.02) | <0.05 |
Abbreviations: SCD: subjective cognitive decline; aMCI: Amnestic mild cognitive impairment; DSST: performance on Digit Symbol Substitution Test.
