Achieving diversity in study populations: The importance of community engagement.

The majority of clinical trials currently and historically do not include older adults or non-white participants. While more women are being recruited, their numbers are still limited. It is very hard to interpret trial results and apply them to older adults when their participation in clinical trials is limited. The focus of this article is the lack of clinical trial participation by persons of diverse races and ethnicities and the presentation of a model infrastructure grounded in community engagement that is proving to be effective in increasing the interest and participation of older African Americans in research.