US population: African-Americans 40M, Whites 200M. People in poverty: African-Americans (27%) 10,8 million, White: (9,9%) 19,8 million. So there are twice as m

US population: African-Americans 40M, Whites 200M. People in poverty: African-Americans (27%) 10,8 million, White: (9,9%) 19,8 million. So there are twice as many poor white people as black people. How can poverty explain that black people get dementia more often? There are twice as many white poor people as there are black.