What proportion of pregnancies show a fatal structural anomaly on ultrasound?
3%
Microarray analysis detects chromosome imbalance in how many foetuses with structural anomalies?
3-5%
What was the diagnostic yield of the PAGE study for potentially pathogenic variants overall
8.5%
The diagnosis yield was higher for specific sub groups. Name those groups and give the diagnostic yield
> Multisystem anomalies - 15%
Cardiac anomalies - 11%
Skeletal anomalies - 15%
How many fetus- parent trios where anaylsed
596
what test did the page participants have before recruitment
QF-PCR and array - negative results for both