Preferences for Return of Genetic Results among Participants in the Jackson Heart Study and Framingham Heart Study

Abstract

Background: Surveys suggest that most research participants desire access to secondary (incidental) genomic findings. However, few studies clarify whether preferences vary by the nature of the finding. Methods: We surveyed members of the JHS (Jackson Heart Study, n=960), the FHS (Framingham Heart Study; n=955), and African American members of the FHS Omni cohort (n=160) who had consented to genomic studies. Each factorial survey included 3 vignettes, randomly selected from a set of 64, that described a secondary genomic result. Vignettes varied systematically by 5 factors identified by expert panels as salient: phenotype severity, actionability (preventability), reproductive significance, and relative and absolute risk of the phenotype. Respondents indicated whether they would want to receive the result. Data were analyzed separately by cohort using generalized linear mixed models. Results: Response rates ranged from 67% to 73%. Across vignettes, 88% to 92% of respondents would definitely or probably want to learn the result. In multivariate analyses among JHS respondents, desire for results was associated with positive attitudes towards genetic testing, lower education, higher subjective numeracy, and younger age, but not with any of the 5 factors. Among FHS respondents, desire for results was associated with higher absolute risk, preventability, reproductive risk, and positive attitudes towards genetic testing. Among FHS Omni respondents, desire for results was associated with positive attitudes towards genetic testing and younger age. Conclusions: Most genetic research participants desire return of secondary genetic results. Several factors identified by expert panels as salient are associated with preferences among FHS, but not JHS or FHS Omni, participants.