Cox proportional hazards regression analysis of ‘long-term mortality’, n=367
| Parameter | HR | 95% CI of HR | p Value |
| Diabetes/for presence of diabetes | 1.899 | 1.116 to 3.230 | 0.0180 |
| Age (per year) | 1.047 | 1.001 to 1.096 | 0.0471 |
| Previous cardiac surgery/for presence of previous cardiac surgery | 2.507 | 1.184 to 5.309 | 0.0164 |
| Gender/for male gender | 1.387 | 0.743 to 2.590 | 0.3039 |
| Interaction age*male gender | — | 0.1609 | |
| Interaction age2*male gender | — | 0.0419 |
HR, hazard ratio.