APOE and dementia: In those aged ≥95 years, 1e–5 AD‐PRS was associated with incident dementia (HR 1.15, 95% CI 1.01–1.32, P = .04), while the 39‐SNPs AD‐PRS was associated with incident dementia among APOE ɛ4 non‐carriers only (HR 1.28; 95% CI 1.10–1.50, P = 2 × 10–3; Table 2).