Table 1 Demographic statistics of AD and matched control cohort.
AD cohort | Matched control cohort | |
|---|---|---|
Population size | 199603 | 998015 |
Mean (SD) age at first AD diagnosis (years) | 20.0 (24.4) | 20.1 (24.3) |
Mean (SD) coverage (years) | 8.9 (4.0) | 8.8 (4.0) |
Race | ||
Caucasian | 65% | 65% |
African American | 19% | 19% |
Asian | 4% | 4% |
Other/unknown | 12% | 12% |
Gender | ||
Male | 54% | 54% |
Female | 46% | 46% |
