Table 2. Association between MHR group and the outcomes of MI patients.
| Model | 30-day mortality | 1-year mortality | |||
|---|---|---|---|---|---|
| Hazard ratio (95% CI) | P | Hazard ratio (95% CI) | P | ||
| Model 1 | 1.805 (1.436–2.268) | <0.001 | 1.502 (1.255–1.798) | <0.001 | |
| Model 2 | 1.497 (1.189–1.885) | 0.001 | 1.318 (1.100–1.579) | 0.003 | |
| Model 3 | 1.813 (1.429–2.302) | <0.001 | 1.559 (1.292–1.882) | <0.001 | |
| Model 4 | 1.781 (1.402–2.261) | <0.001 | 1.524 (1.262–1.839) | <0.001 | |
| Model 5 | 1.779 (1.400–2.261) | <0.001 | 1.537 (1.272–1.859) | <0.001 | |
Hazard ratio and 95% CI for MHR group in 30-day mortality and 1-year mortality were calculated using different Cox regression models. Compared with the high MHR group, the low MHR group had a higher risk for 30-day mortality and 1-year mortality in different models. Model 1 adjusted for age, private insurance. Model 2 adjusted for model 1 plus SAPS score. Model 3 adjusted for model 2 plus heart rate and temperature. Model 4 adjusted for model 3 plus AF, stroke, and liver disease. Model 5 adjusted for model 4 plus creatinine kinase, WBC, sodium, BUN, creatinine, and potassium. MHR, minimum heart rate; MI, myocardial infarction; CI, confidence interval; SAPS, simplified acute physiology score; AF, atrial fibrillation; WBC, white blood cell count; BUN, blood urea nitrogen.