Table 2.
Multivariable analysis | Integer score | Coefficient | Odds ratio | 95% CI | P value |
---|---|---|---|---|---|
Respiratory rate >35 breaths/min | 8 | 1.42 | 4.12 | 1.29-13.13 | .017 |
Shock pre-PCI | 8 | 1.43 | 4.17 | 2.18-7.97 | <.001 |
O2 saturation <93% | 6 | 1.09 | 2.97 | 1.66-5.33 | <.001 |
Age >55 y | 5 | 0.90 | 2.45 | 1.25-4.80 | .009 |
Infiltrates on chest x-ray | 4 | 0.78 | 2.17 | 1.31-3.61 | .003 |
Kidney disease (creatinine level >1.5 mg/dL) | 4 | 0.63 | 1.87 | 1.07-3.27 | .028 |
Diabetes | 3 | 0.51 | 1.67 | 1.01-2.76 | .046 |
Dyspnea | 3 | 0.44 | 1.56 | 0.94-2.59 | .088 |
PCI, percutaneous coronary intervention; STEMI, ST-segment elevation myocardial infarction.