Table 3.
30 day and 31–365 day mortality risk and mortality rate ratio after first time hospitalisation for myocardial infarction in Denmark between 2004 and 2008 associated with comorbidity category
| Comorbidity category* | No of patients | 30 day mortality | 31–365 day mortality | |||||
|---|---|---|---|---|---|---|---|---|
| Mortality risk % (95% CI) | Mortality rate ratio (95% CI) | Mortality risk % (95% CI) | Mortality rate ratio (95% CI) | |||||
| Unadjusted | Adjusted† | Unadjusted | Adjusted† | |||||
| Normal | 26 157 | 10.8 (10.4 to 11.2) | 1 (reference) | 1 (reference) | 6.2 (5.9 to 6.5) | 1 (reference) | 1 (reference) | |
| Moderate | 6633 | 19.2 (18.3 to 20.2) | 1.85 (1.73 to 1.98) | 1.35 (1.26 to 1.45) | 15.5 (14.6 to 16.5) | 2.64 (2.42 to 2.87) | 1.83 (1.68 to 2.00) | |
| Severe | 4295 | 21.4 (20.2 to 22.7) | 2.09 (1.94 to 2.25) | 1.52 (1.41 to 1.64) | 20.6 (19.3 to 22.1) | 3.61 (3.30 to 3.96) | 2.50 (2.29 to 2.74) | |
| Very severe | 3917 | 27.1 (25.7 to 28.5) | 2.72 (2.53 to 2.91) | 1.96 (1.83 to 2.11) | 31.2 (29.5 to 32.9) | 5.80 (5.34 to 6.31) | 3.89 (3.58 to 4.24) | |
* Categories of comorbidity were based on Charlson comorbidity index scores of 0 (normal), 1 (moderate), 2 (severe), and ≥3 (very severe).
†Adjusted for sex and age.