Table 3 Outcomes over the study perioda in individuals with stable vs. unstable patterns of subjective cognitive decline (SCD) and controls (CON)b
Total (n = 453) | Stable SCD (n = 84) | Unstable SCD (n = 195) | CON (n = 174) | P Value (group difference) | |
|---|---|---|---|---|---|
No cognitive decline, n (%) | 329 (59.4) | 48 (57.1) | 156 (80.0) | 125 (71.8) | |
Mild cognitive impairment (MCI), n (%) | 69 (15.2) | 21 (25.0) | 19 (9.7) | 29 (16.7) | |
Dementia, n (%) | 55 (12.1) | 15 (17.9) | 20 (10.3) | 20 (11.5) | <.01 |
Time to cognitive decline, median (95 %-CI) | 7.15 (7.01–7.29) | 6.15 (4.59–7.70) | 7.35 (7.15–7.55) | 7.18 (6.79–7.56) | <.001 |