Selection Factors Influencing Participation in National Alzheimer’s Coordinating Center (NACC) Studies Compared to the Nationally Representative Health and Retirement Study (HRS)

Racial/ethnic disparities in ADRD are well documented such that prevalence of ADRD and known risk factors (e.g., cardiovascular disease, educational attainment) disproportionately impact Black and Latinx populations compared to their White counterparts. To generalize findings on the mechanisms and disease course and mitigate racial/ethnic disparities in ADRD, it is critical that diverse populations are well represented in studies of ADRD. We examined selection factors across racial/ethnic groups included in National Alzheimer’s Coordinating Center data (NACC) compared to the general U.S. population using data from the Health and Retirement Study (HRS).