Cohort comparisons
| 2010–2013 (40 months) | 2013–2019 (72 months) | |
| Live births | 25 859 | 49 375 |
| Admission positive POS | 208 (0.8%) | 253 (0.5%) |
| Admission/month positive POS | 5.2 | 3.4 |
| AN diagnosis CCHD | 46% | 75% |
| CCHD identified by POS | 9 | 8 |
| Major CHD identified by POS | 12 | 17 |
| Screens per CCHD | 2873 | 6171 |
| Screens per major CHD | 2155 | 2904 |
| Screens per non-cardiac ∆ | 175 | 219 |
| CCHD identified predischarge | 94% | 98.7% |
| +ve POS undergoing echo | 29% | 26% |
| Abnormal echos (for positive POS) | 48% | 54% |
| ‘Healthy’ positive POS admissions | 43 (21%) | 6 (2.4%) |
CCHD, critical congenital heart defect; POS, pulse oximetry screening.