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Demographic characteristics stratified by APOE genotype.
| Middle aged | Old | |||||
|---|---|---|---|---|---|---|
| Non-carriers | ε4 | ε4/4 | Non-carriers | ε4 | ε4/4 | |
| N | 450 | 190 | 17 | 402 | 145 | 9 |
| % males | 48 | 46 | 47 | 39 | 33 | 35 |
| Education (yrs) | 12.7 (3.5) | 12.7 (3.7) | 12.4 (3.6) | 8.5 (3.3) | 8.9 (3.6) | 9.3 (2.6) |
| Age (yrs) | 52.4 (5.7) | 52.5 (5.5) | 51.5 (6.8) | 72.8 (6.5) | 71.6 (6.4) | 74.4 (6.4) |
