Demographic and disease related characteristics of the three groups
| No ε4 n=30 | One ε4 n=53 | Two ε4 n=21 | Type of analysis | F Value | χ2 | p Value | |
| MMSE (mean (SD)) | 19 (6.8) | 19 (6.0) | 19 (7.3) | ANOVA | 0.04 | 0.96 | |
| Age at first symptoms (mean (SD)) | 68 (10.7) | 72 (6.8) | 69 (5.2) | Kruskal-Wallis | 3.8 | 0.15 | |
| Age at MRI (mean (SD)) | 72 (10.3) | 76 (6.7) | 72 (5.7) | Kruskal-Wallis | 4.7 | 0.09 | |
| Women (%) | 73 | 77 | 76 | χ2 | 0.17 | 0.92 | |
| CDR 0–1(%) | 73 | 71 | 71 | χ2 | 0.03 | 0.98 | |
| CDR 2–3 (%) | 27 | 28 | 29 | ||||
| Modified Hachinski (mean (SD)) | 0.2 (0.40) | 0.5 (0.67) | 0.5 (0.92) | Pearson correlation | 0.181-150 | 0.07 |
↵1-150 r Value
Degrees of freedom 2 for all χ2 and Kruskal-Wallis analyses. ANOVA degrees of freedom were 2, 101.