Table 5.
Cost-effectiveness summaries for patients managed by interventional cardiologists to 3 years postrandomisation
| Angiography (n=73) | SPECT (n=96) | Cardiac MRI (n=93) | Stress ECHO (n=98) | |
|---|---|---|---|---|
| Mean survival (years) | 2.96 | 2.97 | 2.89 | 2.96 |
| (95% CI) | (2.91 to 2.98) | (2.93 to 3.00) | (2.80 to 2.97) | (2.90 to 2.98) |
| Mean difference vs CA | − | 0.01 | −0.07 | 0 |
| (95% CI) | − | (−0.05 to 0.07) | (−0.17 to 0.02) | (−0.07 to 0.05) |
| Mean QALYs | 2.25 | 2.29 | 2.21 | 2.2 |
| (95% CI) | (2.14 to 2.36) | (2.19 to 2.38) | (2.10 to 2.32) | (2.10 to 2.29) |
| Mean difference vs CA | − | 0.03 | −0.04 | −0.06 |
| (95% CI) | − | (−5.31 to 2.30) | (−4.96 to 2.41) | (−3.06 to 6.42) |
| Mean discounted costs (£) | 5754 | 5205 | 5307 | 6329 |
| (95% CI) | (4651 to 6941) | (4475 to 5979) | (4610 to 6032) | (5120 to 7713) |
| Mean difference vs CA | − | −549 | −447 | 574 |
| (95% CI) | (−1973 to 799) | (−1841 to 897) | (−1097 to 2262) | |
| Probability cost-effective at £20K per QALY | 0.72 | 0.42 | 0.20 | |
| Probability cost-effective at £30K per QALY | 0.70 | 0.39 | 0.21 |
CA, coronary angiography; SPECT, single photon emission CT; QALYs, quality-adjusted life-years.