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Screen Negative Results

  • If your result is screen negative, the chance that your baby has Down syndrome, trisomy 18 or an open neural tube defect is LOWER than the specific cut-off set by your centre.
  • There is a less than 1 in 1 000 (less than 0.1%) chance of your baby having Down syndrome that was not identified by the screening test.
  • When your baby is born, if he or she does not have any of these conditions, your result was a true negative.
  • Every pregnancy has a 2 or 3 in 100 (2-3%) chance of having a baby with some kind of birth defect.  Birth defects can include conditions like heart problems and extra toes.  Even with a screen negative result, your baby can still have a birth defect.  No test can detect every type of birth defect.