Factors affecting the uptake of prenatal screening tests for congenital anomalies; a multicentre prospective cohort study

BackgroundTwo prenatal screening tests for congenital anomalies are offered to all pregnant women in the Netherlands on an opt-in basis: the Combined Test (CT) for Down syndrome at twelve weeks, and the Fetal Anomaly Scan (FAS) at around twenty weeks. The CT is free for women who are 36 or older; the FAS is free for all women. We investigated factors associated with the CT and FAS uptake.MethodThis study is part of the DELIVER study that …