More than half of older American Indian people had cognitive impairment, up to 3 times the prevalence of cognitive impairment among White people in the US, according to results from a population-based cohort study of almost 400 participants. About 35% of American Indian participants had mild cognitive impairment specifically, the researchers reported in Alzheimer & Dementia. The results were based on data collected from participants aged 70 to 95 years from 11 American Indian tribes.
