APOE and dementia: For APOE ε4 homozygotes, again the AGR was highest for incident dementia at 7.23 (4.55–11.54); for prevalent dementia the AGR was 3.13 (2.63–3.73); for proxy dementia the AGR was 3.51 (2.93–4.21) (Figure 1; Supplementary Table 2).