APOE and dementia: The ε4 allele of the APOE gene was significantly associated with dementia in both heterozygous (OR = 2.23, 95% CI = 1.16–4.31, p = 0.001, FDR = 0.02) and homozygous (OR = 12.57, 95% CI = 1.41–112.41, p = 0.005, FDR = 0.08) carriage.