Up-front vs. post-reporting parental co-segregation analysis: Is one approach superior?
Post-reporting analysis resulted in a VUS reduction rate of 39%, nearly double the rate of VUS reduction from up-front analysis (19%), likely due to additional available resources subsequent to the original report, such as newly published literature and database info; however, this results in an extended TAT of 8-12 weeks.
Up-front analysis provides comprehensive results in a single report within the clinical reporting TAT (3-10 weeks, depending on test panel); however, variant assessment is limited to the resources available at the time, including absence of the second parent’s sample (approx. 40% of cases).
Providing multiple options for obtaining parental co-seg analysis increases provider and patient access to this service and allows for the highest yield of informative results