Abstract Background This paper describes the clinical practice and performance of cell-free DNA sequencing-based non-invasive prenatal testing (NIPT) as a screening method for fetal trisomy 21, 18, 13 (T21, T18, T13) sex chromosome aneuploidies (SCA) in general Italian pregnancy population. Methods The AMES-accredited laboratory offers NIPT maternal blood test T21, T13 SCA. Samples were sequenc...