Table 6.
Frequency of different heart defects in different NT thickness
| NT (mm) |
≤ 3
|
3-4
|
4-5
|
5-6
|
≥ 6
|
Total
|
|---|---|---|---|---|---|---|
| n (%) | n (%) | n (%) | n (%) | n (%) | n (%) | |
| Frequency of patients with heart defect | 3(0.2) | 5(0.3) | 3(0.2) | 1(0.06) | 0 (0) | 12(0.8) |
| VSD | 2(0.13) | 3(0.2) | 1(0.06) | 0 (0) | 0 (0) | 6 (0.4) |
| VSD, ASD and aortic coarctation | 1(0.06) | 1(0.06) | 0 (0) | 0 (0) | 0 (0) | 2 (0.13) |
| VSD, ASD and tricuspid valve anomaly | 1(0.06) | 1(0.06) | 0 (0) | 0 (0) | 1(0.06) | 3 (0.2) |
| Hypo plastic left ventricle | 0 (0) | 0 (0) | 0 (0) | 0 (0) | 1 | 1 (8.3) |
Hardy–Weinberg equilibrium test. Nt: Nuchal translucency, VSD: Ventricular septal defect, ASD: Atrial septal defect.