After identification, the studies were coded and thematically analyzed in an effort to reduce the data into condensed and meaningful categories related to facilitators and perceived barriers of racially/ethnically diverse groups about participation in genetic research studies. Preliminary coding categories were derived from 10 high-relevance studies (with high relevance defined as studies that addressed alcohol genetic research and/or provided explicit attention to perceptions of racially/ethnically diverse groups as a substantive focus of the article) [11, 12, 14–21]. The remaining studies were unitized, or divided into meaningful data segments, coded using preliminary code categories, and thematically analyzed. Themes were extracted based on the coded content to reflect a more detailed and meaningful understanding of each of these categories.
