| Unit cost of: | |
| Combined test (includes blood collection and transportation) | |
| OR | |
| Nuchal translucency | Total | 
| PAPP-A and hCG | |
| Counselling session | |
| Recall blood sample collection and transportation | |
| DNA stability tube (leave blank if not applicable) | |
| DNA analysis | |
| Amniocentesis/CVS | 
| Risk cut-off using Combined test markers | ||||
| 1 in 150 | 1 in 200 | 1 in 300 | 1 in 800 | |
| Recall DNA screening | ||||
| In 100,000 women screened number of: | ||||
| Affected pregnancies (trisomy 21, 18 and 13) diagnosed | ||||
| False-positive pregnancies | ||||
| Unaffected pregnancies in which diagnostic test done | ||||
| Total cost | ||||
| Cost per woman screened | ||||
| Cost per affected pregnancy diagnosed | ||||
| Reflex DNA screening | ||||
| In 100,000 women screened number of: | ||||
| Affected pregnancies (trisomy 21, 18 and 13) diagnosed | ||||
| False-positive pregnancies | ||||
| Unaffected pregnancies in which diagnostic test done | ||||
| Total cost | ||||
| Cost per woman screened | ||||
| Cost per affected pregnancy diagnosed | ||||