APOE and dementia: The HR (95% CI) for all-cause dementia associated with older age was larger in APOE4 carriers (HR (95% CI) for ≥ 60 years versus < 60 years: 3.92 (3.57–4.31)) than in non-APOE4 carriers (2.22 (1.67–2.97), P-value for interaction = 0.0003).