Table 2.
Crude and multivariable-adjusted* 30-day and 1-year mortality according to number of previously diagnosed cardiovascular comorbidities in patients hospitalized with acute myocardial infarction
| Comorbidities (n) | 30-day mortality | 1-year mortality | ||
|---|---|---|---|---|
|
|
|
|||
| Dead (n, %) | Hazard ratio (95% CI) | Dead (n, %) | Hazard ratio (95% CI) | |
| 0 | 198 (9.01) | 1.00 | 330 (15.02) | 1.00 |
| 1 | 439 (13.03) | 1.19 (0.93–1.35) | 760 (22.56) | 1.16 (1.01–1.34) |
| 2 | 422 (17.76) | 1.49 (1.23–1.80) | 816 (34.34) | 1.62 (1.41–1.87) |
| 3 | 252 (21.32) | 1.64 (1.32–2.03) | 532 (45.01) | 1.94 (1.66–2.26) |
| ≥4 | 97 (22.30) | 1.68 (1.28–2.21) | 233 (53.56) | 2.31 (1.91–2.78) |
Notes: Comorbidities examined included atrial fibrillation, diabetes, heart failure, hypertension, and stroke.
*
Cox proportional hazards regression model adjusted for age, sex, race, marital status, study year, MI type (Q-wave versus non-Q wave) and acute hospital complications (atrial fibrillation, heart failure, cardiogenic shock).
Abbreviations: CI, confidence interval; MI, myocardial infarction.