Investigating the outcomes of pregnancies with atypical results following SNP-based cfDNA screening: a population-based cohort study

This study investigates the clinical significance of atypical results from SNP-based cell-free DNA (cfDNA) screening in singleton pregnancies, specifically evaluating their association with fetal chromosomal abnormalities. The authors found that 0.8% of pregnancies had atypical results, with a significantly increased risk of chromosomal abnormalities (18.2%) compared to low-risk results, highlighting the need for evidence-based counseling regarding these atypical findings. The findings provide foundational data for understanding the implications of atypical cfDNA results and inform future research directions.