Variables associated with the evolution of spontaneous reperfusion
| Odds ratio | 95% CI | |
|---|---|---|
| A. Logistic model without previous medications | ||
| Age (for 1 year increment) | 1.02 | 1.00 to 1.04 |
| Preinfarction angina (<48 h) | 1.80 | 0.95 to 3.22 |
| Hypertension | 1.50 | 0.94 to 2.38 |
| Q wave myocardial infarction | 0.32 | 0.20 to 0.51 |
| Heart failure on admission (Killip class >1) | 0.33 | 0.12 to 0.73 |
| B. Logistic model with previous medications | ||
| Age (for 1 year increment) | 1.02 | 1.00 to 1.04 |
| Preinfarction angina (<48 h) | 1.76 | 0.92 to 3.19 |
| Hypertension | 1.53 | 0.89 to 2.58 |
| Q wave myocardial infarction | 0.34 | 0.21 to 0.53 |
| Heart failure on admission (Killip class >1) | 0.31 | 0.11 to 0.69 |
| Previous medications | ||
| Aspirin | 1.50 | 0.84 to 2.61 |
| ACE inhibitors | 1.60 | 0.76 to 3.17 |
| Nitrates | 0.31 | 0.13 to 0.64 |