Prognostic significance of heart rate in hospitalized patients presenting with myocardial infarction

Table 3 Multivariate analysis using Cox regression of overall mortality

Variable	Hazard ratio	95% CI	P
Heart rate ≥ 70 bpm	2.50	1.26-4.97	0.009
Peripheral artery disease	1.51	1.14-2.01	0.004
Revascularization at admission	0.53	0.29-0.97	0.040
EF < 40%	1.87	0.98-3.58	0.057
Age (per year)	1.08	1.03-1.12	< 0.001
Type 2 diabetes mellitus	1.80	1.01-3.22	0.047

EF: Ejection fraction of the left ventricle. The analysis includes: treatment with β-blockers, acetylsalicylic acid, angiotensin converting enzyme inhibitors, sex, history of ischemic heart disease and previous heart failure and all the variables in the table. C-Statistic: 0.61.