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Demographic and Clinical Characteristics of Participating Subjects
| Number of families | 210 | |
| Number of subjects evaluated | 1,116 | |
| Men : Women (%) | 34.1 : 65.9 | |
| Mean age in years, mean (± SD) | 70.6 (± 13.1) | |
| Education in years, mean (± SD) | 6.6 (± 5.7) | |
| % Demented | 56.7% | |
| APOE Allele Frequency (%) | Unaffected | Affected |
| ε-2 | 4.8 | 4.5 |
| ε-3 | 66.2 | 63.4 |
| ε-4 | 29.0 | 32.1 |
