Clinical samples sorted by | T21 | T18 | T13 | Normal | Total |
---|---|---|---|---|---|
Maternal age (Years) | Â | Â | Â | Â | Â |
  ≤ 24 | 4 | 1 | 0 | 27 | 32 |
 25–34 | 17 | 7 | 1 | 169 | 194 |
 ≥ 35 | 4 | 2 | 0 | 51 | 57 |
Gestational age (Weeks) | Â | Â | Â | Â | Â |
 12–15 | 17 | 9 | 1 | 28 | 55 |
 16–20 | 7 | 1 | 0 | 191 | 199 |
 21–25 | 0 | 0 | 0 | 17 | 17 |
 ≥ 26 | 1 | 0 | 0 | 11 | 12 |
Screen method | Â | Â | Â | Â | Â |
 SBT HR (Cut-off at 1/270) | 5 | 0 | 0 | 38 | 43 |
 SBT IR (Cut-off at 1/271–1/1000) | 3 | 0 | 0 | 63 | 66 |
 Abnormal Ultrasound Results | 15 | 9 | 1 | 23 | 48 |
 Adv. Maternal Age (≥ 35 Years) | 1 | 0 | 0 | 47 | 48 |
 Direct NGS-NIPT | 1 | 1 | 0 | 76 | 78 |
Total | 25 | 10 | 1 | 247 | 283 |