“Atypicality Index Helps Identify Chromosomal Aberration Risks in Pregnancies After Low-Risk Screening”

https://pubmed.ncbi.nlm.nih.gov/38112514

The atypicality index, which quantifies the unusualness of an individual’s first-trimester screening markers and second-trimester estimated fetal weight, can help identify pregnancies at reduced or increased risks of chromosomal aberrations following a low-risk initial screening result.