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Characteristics of the study population
| Cases | Controls | |
|---|---|---|
| n | 1757 | 2016 |
| Age at blood draw (mean years ± SD) | 68.04 ± 10.58 | 67.44 ± 18.29 |
| Age at onset (mean years ± SD) | 58.72 ± 11.61 | – |
| Sex (% of male) | 67.7 | 37.4 |
| Site (%) | ||
| Oregon | 33.9 | 55.5 |
| Washington | 36.1 | 27.3 |
| New York | 22.2 | 13.4 |
| Georgia | 7.7 | 3.9 |
