Table 5 Absolute risk of repeat revascularisation in 12 months of follow up for risk subgroups.
| Patients undergoing elective surgery | |||||||
|---|---|---|---|---|---|---|---|
| Number of risk factors | Subgroup risk profile | Absolute risk (%) | 95% CI | Proportion of patients | |||
| Calcification | Angulation >45° | Restenotic lesion | Triple vessel disease | ||||
| 0 (A) | 5.6 | 4.3 to 6.9 | 57.2% | ||||
| 1 (B) | 8.4 | 6.9 to 10.1 | 31.6% | ||||
| B1 | No | Yes | No | No | 7.7 | 5.4 to 10.2 | 17.7% |
| B2 | No | No | No | Yes | 7.7 | 4.9 to 10.7 | 6.3% |
| B3 | Yes | No | No | No | 10.5 | 7.2 to 14.1 | 6.1% |
| B4 | No | No | Yes | No | 11.1 | 5.8 to 16.8 | 1.5% |
| 2 (C) | 16.6 | 14.4 to 18.8 | 10.1% | ||||
| C1 | No | Yes | No | Yes | 14.8 | 11.5 to 18.4 | 3.6% |
| C2 | Yes | Yes | No | No | 17.4 | 13.8 to 21.4 | 4.8% |
| C3 | Yes | No | No | Yes | 17.3 | 13.4 to 21.6 | 0.9% |
| C4 | No | Yes | Yes | No | 17.9 | 12.9 to 23.7 | 0.3% |
| C5 | No | No | Yes | Yes | 17.9 | 12.7 to 24.0 | 0.4% |
| C6 | Yes | No | Yes | No | 20.4 | 15.0 to 26.4 | 0.2% |
| 3 or 4 (D) | 24.6 | 21.5 to 27.9 | 1.1% | ||||
| D1 | Yes | Yes | No | Yes | 23.7 | 19.6 to 28.1 | 0.8% |
| D2 | No | Yes | Yes | Yes | 24.2 | 18.9 to 30.1 | 0.1% |
| D3 | Yes | Yes | Yes | No | 26.5 | 21.2 to 32.4 | 0.2% |
| D4 | Yes | No | Yes | Yes | 26.5 | 21.0 to 32.5 | 0.0% |
| D5 | Yes | Yes | Yes | Yes | 32.2 | 26.7 to 38.0 | 0.1% |
| Patients undergoing non‐elective surgery | |||||||
|---|---|---|---|---|---|---|---|
| Subgroup risk profile | Absolute risk (%) | 95% CI | Proportion of patients | ||||
| Vessel diameter <2 mm | Prior CABG | ||||||
| 0 (X) | 9.9 | 6.9 to 10.8 | 91.0% | ||||
| 1 (Y) | 22.2 | 15.5 to 29.6 | 8.9% | ||||
| Y1 | Yes | No | 25.3 | 13.8 to 36.8 | 3.4% | ||
| Y2 | No | Yes | 20.3 | 11.2 to 29.4 | 5.5% | ||
| 2 (Z) | 40.4 | 29.4 to 51.9 | 0.1% | ||||
CI, confidence interval.