Explanatory variables | Utility at randomisation (n = 1799) | Change in utility at follow-up(n = 1734) | ||
Utility | SE | Change in utility | SE | |
Constant* | 0.692 | 0.015 | ||
Diabetes | −0.051 | 0.021 | ||
Previous myocardial infarction | −0.044 | 0.016 | −0.010 | 0.016 |
ST depression | −0.066 | 0.015 | ||
Angina (grade 3 or 4) | −0.074 | 0.015 | ||
Male | 0.073 | 0.015 | ||
Randomised to conservative strategy (4-month follow-up) | 0.044 | 0.013 | ||
Randomised to early interventional strategy (4-month follow-up)† | 0.038 | 0.017 | ||
Randomised to conservative strategy (12-month follow-up) | 0.038 | 0.008 | ||
Randomised to early interventional strategy (12-month follow-up)† | 0.018 | 0.015 | ||
Myocardial infarction during year | −0.035 | 0.022 |
*The constant shows the utility at randomisation for a patient without any of the risk factors included in the analyses. A negative (positive) sign indicates that the risk factor is associated with a lower (higher) utility at randomisation.
†Note that coefficients represent the gain in utility in the early interventional strategy over and above that of the conservative strategy.
SE, standard error.