Table 3 Options offered for Down syndrome screening in the first trimester
| Â | Singleton Foetus N (%) | DCDA Twins N (%) | MCDA Twins N (%) |
|---|---|---|---|
Nuchal translucency (NT) alone | 7 (7.4) | 16 (17) | 13 (13.8) |
First trimester screening (FTS) comprising NT, PAPPA, bHCG) | 74 (78.7) | 65 (69.1) | 64 (68.1) |
NIPT | 43 (45.7) | 16 (17) | 29 (30.9) |
NT in combination with NIPT | 25 (26.6) | 15 (16) | 13 (13.8) |
FTS in combination with NIPT | 33 (35.1) | 11 (11.7) | 20 (21.3) |
Others | Invasive testing: 2 (2.1) Two-step contingency testing 1 (1.7) | Invasive testing: 2 (2.1) | Invasive testing: 2 (2.1) |