Optimizing risk communication for Lynch syndrome: Results of a randomized controlled trial of visual arrays for genetic testing

The study examined how individuals understand risk from genetic testing and how people relate risk to their own health. Additionally, the study examined risk communication with blood family members. A 30-question online survey was distributed to members of Amazon's Mechanical Turk (MTurk) platform. The survey collected demographic information, health literacy and numeracy, risk perception, and questions about familial communication. Participants were randomized 1:1 to receive either a single visual array or a narrative visual array. Subsequently, regarding intrafamilial communication, participants were randomized 1:1 into either a 'standard choice' frame or an 'enhanced choice' frame.