Patient demographics
| Demographics | N (%) |
| Male gender | 1614 (59.1) |
| Ethnicity | |
| White | 1627 (59.5) |
| Asian | 105 (3.8) |
| Black | 49 (1.8) |
| Other/non-stated | 952 (34.8) |
| Deprivation | |
| Less deprived <20% | 445 (16.3) |
| Less deprived 20%–50% | 770 (28.2) |
| More deprived 20%–50% | 782 (28.6) |
| Most deprived <20% | 465 (19.0) |
| Age at first operation | |
| <16 years | 654 (23.9) |
| ≥16 years | 2079 (76.1) |
| Diagnosis | |
| TOF | 1207 (44.2) |
| PS/PR | 488 (17.9) |
| AS/AR (Ross) | 254 (9.3) |
| PA | 249 (9.1) |
| TGA | 88 (3.2) |
| Truncus arteriosus | 82 (3.2) |
| DORV | 77 (2.8) |
| ccTGA | 5 (0.2) |
| Other | 283 (10.4) |
| Time period | |
| Before 2006 | 635 (23.2) |
| 2006 or after | 2098 (76.8) |
| Complexity of diagnosis | |
| Moderate | 1949 (71.3) |
| Severe | 501 (18.3) |
| Procedures | |
| Homograft valve | 1052 (37.0) |
| Xenograft valve | 1147 (40.3) |
| Mechanical valve | 343 (12.1) |
| Percutaneous valve | 303 (10.7) |
AS/AR, aortic stenosis/regurgitation; ccTGA, congenital corrected transposition of the great arteries; DORV, double outlet right ventricle; Non-spec, non-specified; PA, pulmonary atresia; PS/PR, pulmonary stenosis/regurgitation; TGA, transposition of the great arteries; TOF, tetralogy of Fallot.