Patients’ Characteristics (N = 2,690)
| Characteristic | Value |
|---|---|
| Age, mean (SD), y | 73.7 (2.4) |
| Male, No. (%) | 1,212 (45.1) |
| Educational levela | |
| Low (<7 y), No. (%) | 591 (22.0) |
| Intermediate (7–12 y), No. (%) | 1,672 (62.2) |
| High (>12 y), No. (%) | 368 (13.7) |
| White, No. (%)b | 2,555 (95.0) |
| MMSE scorec | |
| At baseline, median (IQR) | 29 (27–29) |
| At 2 y, median (IQR) | 29 (27–29) |
| VAT scored | |
| At baseline, median (IQR)e | 6 (5–6) |
| At 2 y, median (IQR) | 6 (5–6) |
Note: Characteristics at baseline unless otherwise noted.
IQR = interquartile range; MMSE = Mini-Mental State Examination; VAT = Visual Association Test.
↵a Data missing for 59 patients.
↵b Data missing for 40 patients.
↵c Scores range from 0 to 30, with higher scores indicating more normal cognitive function.
↵d Scores range from 0 to 6, with higher scores indicating more normal cognitive function.
↵e Data missing for 14 patients.