Table 1.
Incidence and antenatal detection rates
|
All live births, stillbirths & pregnancy terminations n = 178 889 |
Live births | Stillbirths | Pregnancy terminations | |||
|---|---|---|---|---|---|---|
|
Total n |
Incidence n per 1000 |
Antenatal diagnosis n (%) |
Total n (%) |
Total n (%) |
Total n (%) |
|
| Primary targets | 178 | 1.0 | 141 (79) | 123 (69) | 12 (7) | 43 (24) |
| Secondary targets | 90 | 0.5 | 54 (60) | 71 (79) | 5 (6) | 14 (15) |
| Group A (4 chamber view) | ||||||
| HLHS | 38 | 0.21 | 37 (97) | 17 (45) | 4 (10) | 17 (45) |
| Pulmonary atresia | 24 | 0.13 | 21 (88) | 14 (58) | 3 (13) | 7 (29) |
| Tricuspid atresia | 7 | 0.04 | 7 (100) | 3 (43) | 2 (28) | 2 (28) |
| Ebstein's anomaly | 3 | 0.02 | 3 (100) | 1 (33) | ‐ | 2 (67) |
| Total Group A | 72 | 68 (94) | 35 (49) | 9 (12) | 28 (39) | |
| Group B (Outflow tract view) | ||||||
| Tetralogy of Fallot | 26 | 0.15 | 25 (96) | 11 (42) | 2 (8) | 13 (50) |
| Truncus arteriosus | 6 | 0.03 | 6 (100) | 4 (67) | ‐ | 2 (33) |
| DORV | 21 | 0.12 | 20 (95) | 13 (62) | 4 (19) | 4 (19) |
| Valvular stenosis | 16 | 0.09 | 8 (50) | 13 (81) | 1 (6) | 2 (13) |
| Total Group B | 69 | 59 (86) | 41 (60) | 7 (10) | 21 (30) | |
| Group C (Arch view/3VV/3VT/Other) | ||||||
| d‐TGA | 70 | 0.39 | 43 (61) | 67 (96) | 1 (1) | 2 (3) |
| AAO | 50 | 0.28 | 23 (46) | 44 (88) | ‐ | 6 |
| TAPVD | 7 | 0.04 | 2 (29) | 7 (100) | ‐ | ‐ |
| Total Group C | 127 | 68 (54) | 118 (93) | 1 (1) | 8 (6) | |
| All | 268 | 1.5 | 195 (73) | 194 (72) | 17 (7) | 57 (21) |
P value: Antenatal detection rate (comparison group A, B & C) <.001.
Abbreviation: 3 VV, 3 vessel view; 3VT, 3 vessel and trachea view; AAO, aortic arch obstruction; DORV, Double outlet right ventricle; d‐TGA, d‐loop transposition of the great arteries; HLHS, hypoplastic left heart syndrome; TAPVD, total anomalous pulmonary venous drainage.