An Accessible Communication System for Population-Based Genetic Testing: Development and Usability Study.

A multistep web-based communication system appears to be an effective way to address many potential barriers to access, which may otherwise make genetic testing difficult for at-risk individuals to participate in. Importantly, some dimensions of access were easy to assess before study recruitment, but other aspects of the communication system required ongoing assessment during the implementation process of the Making Genetic Testing Accessible study.