Fig. 1: Incidence of rare autosomal trisomies.
From: Outcome of publicly funded nationwide first-tier noninvasive prenatal screening
Reported autosomal trisomies subdivided by outcome of the follow-up: true positive (green), confined placental mosaicism (yellow), negative on both amniotic fluid and placenta biopsy (red), negative on amniotic fluid but no placenta biopsy available (blue), no invasive follow-up (gray).
