Black people had nearly 1.5 to 1.9 times increased dementia prevalence and 1.4 to 1.8 times greater dementia incidence between 2000 and 2016, compared with whites, indicating no reduction in racial gaps in dementia, despite findings showing steady or declining overall dementia risk during the same period, according to a study in JAMA Neurology. "Additional efforts to identify and mitigate factors contributing to these disparities is warranted," researchers wrote.