Table 2 Final Stage 1 screening outcomes by potential exclusion criteria, evaluation of critical congenital heart defects (CCHD) screening in the neonatal intensive care unit, February to September 2015 (N=3423)
On oxygen N=579 | Not on oxygen N=2844 | |||||||
|---|---|---|---|---|---|---|---|---|
Total pass | Pass | Conditional pass a | Fail b | Pass | Fail b | |||
N | % | % | % | % | N | % | % | |
Total infants screened at Stage 1 | 579 | 97.9 | 74.1 | 23.8 | 2.1 | 2844 | 99.3 | 0.7 |
Prenatal CHD diagnosis and/or echo before screen | 92 | 95.7 | 68.5 | 27.2 | 4.3 | 157 | 95.5 | 4.5 |
Neither prenatal diagnosis nor echo before screen | 487 | 98.4 | 75.2 | 23.2 | 1.6 | 2687 | 99.5 | 0.5 |
Gestational age (weeks) | ||||||||
<28 | 85 | 97.6 | 56.5 | 41.2 | 2.4 | 21 | 90.5 | 9.5 |
28–31 | 121 | 99.2 | 74.4 | 24.8 | 0.8 | 123 | 100.0 | – |
32–36 | 205 | 99.0 | 74.6 | 24.4 | 1.0 | 1124 | 99.8 | 0.2 |
⩾37 | 168 | 95.8 | 82.1 | 13.7 | 4.2 | 1576 | 98.4 | 1.0 |
Birth weight (g) | ||||||||
<1000 | 79 | 97.5 | 64.6 | 32.9 | 2.5 | 27 | 92.6 | 7.4 |
1000–1499 | 102 | 100.0 | 67.6 | 32.4 | — | 106 | 100.0 | – |
1500–2499 | 178 | 98.9 | 75.3 | 23.6 | 1.1 | 907 | 100.0 | – |
⩾2500 | 220 | 96.4 | 79.5 | 16.8 | 3.6 | 1804 | 99.0 | 1.0 |
