Increasing ethnic minority participation in Alzheimer disease research.

The Alzheimer's Association and National Institutes of Health have emphasized the need for participation of racial/ethnic populations in Alzheimer disease (AD) clinical research. Many articles have described strategies to enhance participation including establishing enduring ties to the community and tailoring the site to be more culturally welcoming or user-friendly to the community. Yet, most of these reports are not data driven. To get a better indication of the knowledge base, this review summarizes research across a broad range of domains (e.g., cancer, kidney disease, AD) that used systematic approaches to identify methods and factors that reduce barriers to recruitment, participation, and retention of a more racially and ethnically diverse population. Overall, 121 reports were found with 8 of these in AD. As a relatively new area of investigation, the literature was primarily descriptive; outcome data were seldom provided. While these studies help to identify areas of potential importance in racial/ethnic participation, hypothesis-driven research remains necessary to tease apart the key techniques that engender racial/ethnic participation in AD studies. This article suggests several recommendations, including the need for prospective research of specific recruitment methods. Fundamentally, researchers should consider that these strategies apply to all potential research participants, and not simply to traditionally underserved racial/ethnic populations.