Risk factors for development of HF prior to or at the time of HF diagnosis in the study population
| Patients with congenital heart disease and HF, n=729 | Controls with HF, n=75 | |
| Diabetes, n (%) | 6 (0.8) | 3 (4.0) |
| Atrial fibrillation, n (%) | 70 (9.6) | 9 (12.0) |
| Stroke, n (%) | 12 (1.6) | 2 (2.7) |
| Hypertension, n (%) | 24 (3.3) | 13 (17.3) |
| Ischaemic heart disease, n (%) | 33 (4.5) | 13 (17.3) |
HF, heart failure.