Table 2.
Summary Table of Main Cox Proportional Hazards Analyses
| Analysis | Unadjusted | Adjusted* | ||||
|---|---|---|---|---|---|---|
| HR | 95% CI | P value | HR | 95% CI | P value | |
| VA vs no VA | ||||||
| In‐hospital mortality | 1.96 | 1.56–2.45 | <0.0001 | 1.89 | 1.49–2.40 | <0.0001 |
| Long‐term mortality in patients surviving to discharge | 0.90 | 0.70–1.16 | 0.43 | 1.03 | 0.80–1.33 | 0.82 |
| Recurrent VA in patients surviving to discharge | 5.38 | 3.30–8.80 | <0.0001 | 4.15 | 2.42–7.09 | <0.0001 |
| Composite end point of death, VA, or CA in patients surviving to discharge | 1.11 | 0.90–1.40 | 0.355 | 1.24 | 0.98–1.57 | 0.07 |
| CA vs no CA | ||||||
| Long‐term mortality in patients surviving to discharge | 1.31 | 1.01–1.70 | 0.04 | 1.36 | 1.04–1.78 | 0.02 |
| Recurrent VA in patients surviving to discharge | 3.35 | 1.64–6.84 | <0.001 | 2.60 | 1.23–5.48 | 0.01 |
CA indicates cardiac arrest; HR, hazard ratio; and VA, ventricular arrhythmia.
*
Adjusted for sex, ethnicity, hemoglobin level, white cell count, platelet count, sodium level, potassium level, creatinine level, peak troponin (× upper limit of normal), family history of cardiovascular disease, current smoker, diabetes, hypertension, hypercholesterolemia, heart failure, previous ischemic heart disease, previous myocardial infarction, atrial fibrillation, aortic stenosis, chronic kidney disease, malignancy, obstructive lung disease, type of acute coronary syndrome, percutaneous coronary intervention, coronary artery bypass graft, and implantation of device.