Table 1 Characteristics of the individuals within the three strata of objective cognitive trajectory in our subsample of MEMENTO study participants
Stratum #1 | Stratum #2 | Stratum #3 | |
|---|---|---|---|
Description | High and increasing MMSE | Subtle decline in MMSE scores | Steep decline in MMSE scores |
N (% of the sample) | 1044 (59.7) | 445 (25.5) | 259 (14.8) |
Normalized MMSE at baseline [/100; mean (SD)] | 85.11 (11.55) | 71.41 (11.13) | 60.15 (13.35) |
Age at baseline [years; mean (SD)] | 69.51 (8.46) | 71.11 (8.63) | 73.77 (7.96) |
Sex [female; n (%)] | 668 (64.0) | 276 (61.9) | 148 (57.1) |
Education [low; n (%)] | 261 (25.0) | 205 (56.0) | 143 (55.2) |
Clinical Dementia Rating at baseline [0.5; n (%)] | 509 (48.7) | 283 (63.6) | 241 (93.0) |
Dementia incidence rate [per 1000 person-years] | 3.46 | 22.84 | 260.75 |