APOE and Lewy body dementia: Although there was no difference in the age of onset of DLB in APOE ɛ4 allele carriers when compared with non-APOE ɛ4 allele carriers (P=0.227), the APOE ɛ4 allele carriers had a shorter disease duration following diagnosis (P=0.036), and died at an earlier age (P=0.005) than non-APOE ɛ4 carriers (Figure 2, Table 3).