Characteristics of patients examined by coronary angiography for known or suspected ischaemic heart disease in 1992, 1996, and 2000
| Patient characteristic | 1992 | 1996 | 2000 |
|---|---|---|---|
| *p Value for trend <0.001; †median (range). | |||
| PLM, proximal left main coronary artery; VD, vessel disease. | |||
| Number | 1578 | 1709 | 3734 |
| Age (years)* | |||
| 19–49 | 21.8% | 18.0% | 15.8% |
| 50–69 | 67.8% | 63.5% | 55.7% |
| ⩾70 | 10.4% | 18.5% | 28.6% |
| Sex* | |||
| Men | 73.3% | 71.3% | 65.6% |
| Women | 26.7% | 28.7% | 34.4% |
| Indication* | |||
| Acute | 5.8% | 24.3% | 44.0% |
| Elective | 94.2% | 75.7% | 56.0% |
| Angiographic status* | |||
| No significant stenoses | 14.6% | 20.2% | 27.1% |
| 1 VD | 16.4% | 26.1% | 27.5% |
| 2 VD | 13.1% | 22.4% | 17.5% |
| 3 VD | 24.4% | 26.8% | 20.0% |
| PLM stenosis | 4.3% | 4.5% | 6.3% |
| Missing data | 27.3% | 0.0% | 1.5% |
| Charlson co-morbidity index* | |||
| 0 | 34.1% | 35.7% | 35.9% |
| 1–2 | 58.9% | 54.4% | 51.3% |
| >2 | 6.9% | 9.9% | 12.7% |
| Revascularisation at baseline or within one year of follow up* | 47.5% | 54.7% | 58.8% |
| Time to revascularisation (days)*† | 91 (0–365) | 33 (0–365) | 0 (0–365) |
| Total follow up (years) | 4357 | 4737 | 10408 |
| Number of deaths during follow up | 188 | 185 | 419 |