In 2020, the meta-analysis by Sanghvi and colleagues (synthesizing data from 75 articles in total) confirmed the association between APOE4 carriage and DLB (OR = 2.70) while replicating the weaker, already known association between APOE4 and PDD (OR = 1.60) [107] (Table 1). The gene discussed is APOE; the disease is Lewy body dementia.