Table 3.
Predictors of mortality in univariate Cox proportional hazards regression model and multivariate Cox regression analysis
| Variable | Hazard ratio | 95 % CI | p-value |
|---|---|---|---|
| Univariate Cox proportional hazards regression model of mortality | |||
| Male sex | 0.525 | 0.346–0.796 | 0.002 |
| Age at discharge | 1.069 | 1.045–1.092 | <0.001 |
| Active smoking status | 0.511 | 0.284–0.920 | 0.025 |
| Past medical history of IHD or ACS | 1.827 | 1.177–2.836 | 0.007 |
| Past medical history of CVA | 2.755 | 1.688–4.498 | <0.001 |
| Co-morbidity of hypertension | 1.601 | 1.008–2.542 | 0.046 |
| Co-morbidity of heart failure | 4.266 | 2.770–6.570 | <0.001 |
| Co-morbidity of diabetes mellitus | 1.786 | 1.174–2.715 | 0.007 |
| STEMI at index hospitalization | 0.345 | 0.213–0.560 | <0.001 |
| PCI done or planned during index hospitalization | 0.185 | 0.108–0.318 | <0.001 |
| CABG done or planned during index hospitalization | 0.609 | 0.223–1.660 | 0.332 |
| Latest TG level before discharge | 0.842 | 0.617–1.149 | 0.279 |
| Latest HDL-C level before discharge | 0.674 | 0.298–1.521 | 0.342 |
| Latest LDL-C level before discharge | 0.873 | 0.649–1.175 | 0.370 |
| Prescription of statins at discharge | 0.285 | 0.188–0.433 | <0.001 |
| Latest CK level before discharge > 2 × ULN | 1.659 | 0.724–3.803 | 0.231 |
| Latest serum ALT level before discharge > 3 × ULN | 6.491 | 2.371–17.770 | <0.001 |
| First TG level 6 months after discharge | 0.740 | 0.478–1.145 | 0.177 |
| First HDL-C level 6 months after discharge | 0.875 | 0.402–1.905 | 0.737 |
| First LDL-C level 6 months after discharge | 1.685 | 1.230–2.308 | 0.001 |
| Number of in-patient hospitalization due to cardiac reasons | 1.076 | 1.034–1.120 | <0.001 |
| Predictors of mortality in multivariate Cox regression analysis | |||
| Male sex | 0.936 | 0.487–1.801 | 0.843 |
| Age at discharge | 1.066 | 1.027–1.107 | 0.001 |
| Active smoking status | 1.602 | 0.671–3.825 | 0.289 |
| Past medical history of IHD or ACS | 0.493 | 0.237–1.023 | 0.057 |
| Past medical history of CVA | 1.804 | 0.866–3.758 | 0.115 |
| Co-morbidity of hypertension | 0.765 | 0.364–1.608 | 0.480 |
| Co-morbidity of heart failure | 2.859 | 1.448–5.646 | 0.002 |
| Co-morbidity of diabetes mellitus | 1.217 | 0.632–2.342 | 0.556 |
| STEMI at index hospitalization | 0.318 | 0.157–0.645 | 0.002 |
| PCI done or planned during index hospitalization | 0.468 | 0.203–1.075 | 0.074 |
| Prescription of statins at discharge | 0.833 | 0.416–1.664 | 0.604 |
| Latest serum ALT level before discharge > 3 × ULN | 0.961 | 0.113–8.116 | 0.971 |
| First TG level 6 months after discharge | 0.695 | 0.384–1.260 | 0.231 |
| First LDL-C level 6 months after discharge | 1.824 | 1.233–2.697 | 0.003 |
| Number of in-patient hospitalization due to cardiac reasons | 1.010 | 0.928–1.100 | 0.814 |