Multivariate predictors of Q wave development in patients with ST elevation based on 1060 complete datasets
| Odds ratio | 95% CI | p Value | |
| Age | 1.00 | 0.99 to 1.02 | 0.89 |
| Male sex | 0.95 | 0.67 to 1.35 | 0.49 |
| Smoking | 0.69 | 0.49 to 0.96 | 0.03 |
| Hypertension | 0.89 | 0.64 to 1.24 | 0.49 |
| Diabetes | 0.67 | 0.46 to 0.97 | 0.03 |
| Previous treatment with aspirin | 0.53 | 0.34 to 0.84 | 0.007 |
| Emergency treatment with aspirin | 0.72 | 0.39 to 1.32 | 0.28 |
| Thrombolytic treatment | 1.00 | 0.67 to 1.50 | 1.00 |
| Pain duration < 120 min | 1.00 | 0.74 to 1.35 | 0.99 |
Odds ratios represent odds of Q wave infarction.