Baseline characteristics
| CABG | PCI | |||
| England | NYS | England | NYS | |
| N | 93 473 | 49 496 | 286 076 | 145 340 |
| Gender (man) | 79.3 | 72.1 | 73.5 | 68.3 |
| Age (years) | 67.6±10.1 | 67.2±11.0 | 64.8±12.1 | 65.1±12.2 |
| Charlson score (median (IQR)) | 4 (9) | 8 (13) | 3 (5) | 5 (10) |
| Hypertension (%) | 64.2 | 58.4 | 47.7 | 66.9 |
| Diabetes mellitus (%) | 24.3 | 32.9 | 18.6 | 33.9 |
| Renal impairment (%) | 2.8 | 13.9 | 2.2 | 11.2 |
| Myocardial infarction (%) | 10.7 | 27.4 | 44.4 | 40.1 |
| Heart failure (%) | 10.0 | 27.7 | 7.8 | 15.4 |
| Stroke (%) | 4.0 | 11.9 | 1.3 | 6.7 |
| Concomitant AVR/MVR (%) | 17.4 | 18.6 | – | |
All comparisons between England and NYS for procedures and diagnoses were statistically significant (all P<0.001).
AVR, aortic valve replacement; CABG, coronary artery bypass grafting; MVR, mitral valve replacement; NYS, New York State; PCI, percutaneous coronary intervention.