Community events as viable sites for recruiting minority volunteers who agree to be contacted for future research.

Reaching out to medically underserved racial/ethnic groups is a key challenge in population research. To increase their participation opportunities, we asked adults attending community events to complete a survey about their health concerns and invited them to join a registry of individuals agreeing to future study invitation. Approximately 66% of the 2298 survey responders joined the registry. Multivariate analysis showed that Hispanics were more likely to agree to contact than Whites. Agreers endorsed a wider range of health concerns than non-agreers.