Trends in the use of prenatal testing services for fetal aneuploidy in Ontario: a descriptive study

This study examined the trends in use of different modalities of prenatal screening (multiple-marker screening, cell-free DNA screening [cfDNA]) and diagnostic testing before and after the implementation of provincial funding for cfDNA screening in Ontario. Results demonstrated that since the implementation of publicly funded cfDNA, cfDNA screening increased and prenatal diagnostic testing decreased.

CMAJ Open 2018;6(4):E436-E444; doi: 10.9778/cmajo.20180046