Detection rates of a national fetal anomaly screening programme: A national cohort study.

Objective: To measure condition-specific detection rates for 14 physical conditions screened for by the NHS fetal anomaly screening programme (FASP) fetal anomaly (FA) ultrasound scan.

Design: Retrospective audit of 12 694 diagnoses across a 3-year national cohort.

Setting: All English NHS and crown-dependency hospital trusts providing maternity services.