How accurate is NIPT?
The NIPT will identify more than 99% of babies who have Downs syndrome.
If your test returns a "low probability" result, the risk that your baby might have Down's syndrome is around 1 in 10000.
If your test returns a "high probability" result, the probability that your baby has Down's syndrome is around 90%. In this case we would recommend a confirmatory test such a CVS or amniocentesis.