Question 1 (Antenatal screening)

Question 1

What is the background population risk of miscarriage?

Answer 1

Common, at least 10% for every pregnancy.
Maternal age important (10% at 25-29 years old, >50% when over 45 years old)
For young mothers under 20, and when dad is over 40, there is also increased risk.

Question 2

What influence does one previous miscarriage have on Anna’s personal risk?

Answer 2

This can depend on why the miscarriage occurred, which is not usually information that we have. We tend to only investigate after 3 miscarriage when we call it ‘recurrent’.

at a population level, the good news is the majority of people who have had one miscarriage will go on to have a healthy pregnancy.

We think the risk of a second miscarriage is around 20%.