Genetic Screening of Targeted Subpopulations: The Role of Communal Discourse in Evaluating Sociocultural Implications

Abstract

Targeting socially identifiable subpopulations for genetic screening entails the risk of stigmatizing them. The potential for such harm should be considered before programs are initiated. There is an emerging consensus that targeted subpopulations should be actively involved in evaluating these risks. A process of communal discourse engages the community in discussions that reflect both public and private sociocultural contexts in which individual decisions about screening will be made. This allows the subpopulation to address the collective implications of testing in a culturally appropriate way. Communal discourse was used to evaluate the collective implications of genetic testing in two Native American communities. We found that private social units were more influential than public units in reaching communal consensus, that local sociocultural issues were of more concern than were general issues such as employment and insurance discrimination, and that heterogeneity within a subpopulation may be just as significant a consideration in designing a targeted screening program as diversity between subpopulations. Heterogeneity is constructed by using a dichotomy between community-specific and biomedical health representations and practices. How genetic screening is socially constructed using a community's existing dichotomy may be central to its success.

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