Genetic-Ancestry Analysis on >93,000 Individuals Undergoing Expanded Carrier Screening Reveals Limitations of Ethnicity-Based Medical Guidelines
Purpose: Despite strong association between genetic ancestry and carrier status, current carrier-screening guidelines recommend testing for a limited set of conditions based on patient self-reported ethnicity, which conflates genetic and cultural factors. Materials and Methods: For 93,419 individuals undergoing a 96-gene expanded carrier screen (ECS), correspondence was assessed among carrier…