TABLE 1.
Participant characteristics
| Invited (n = 7150) | Enrolled (n = 864) | Blood draw completed (n = 629) | Contacted BHR support (n = 264) | |
|---|---|---|---|---|
|
Age, mean ± SD (range) |
70 ± 8.5 (55.9, 110.3) |
68 ± 7.5 (55.9, 95.4) |
68 ± 7.5 (55.9, 95.4) |
71 ± 8.4) (56, 96.2) |
| Female, n (% of total) | 4967 (69%) | 606 (70%) | 438 (70%) | 188 (74%) |
| White, n (% of total) | 4926 (68%) | 739 (85%) | 552 (88%) | 222 (84%) |
|
Years education, mean ± SD (Range) |
16 ± 2.4 (6, 20) |
16 ± 2.4 (6, 20) |
16 ± 2.3 (6, 20) |
16 ± 2.5 (6, 20) |
| Subjective memory complaints, n (% of total) | 3273 (46%) | 364 (42%) | 244 (39%) | 114 (43%) |
| Self‐report MCI, n (% of total) | 231 (3%) | 35 (4%) | 22 (3%) | 12 (0.05%) |
Abbreviations: BHR, Brain Health Registry; MCI, mild cognitive impairment; SD, standard deviation.