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Table 3 Hazard ratios for the capacity of the variables to predict the development of the endpoint (cardiac mortality)

From: Ambulatory ECG-based T-wave alternans and heart rate turbulence can predict cardiac mortality in patients with myocardial infarction with or without diabetes mellitus

Variables Hazard ratio (95% CI) P value
DM (yes/no) 0.36 (0.09—1.39) 0.14
LVEF(<40%) 1.04 (0.95—1.13) 0.44
HRT (positive) 5.01 (1.33—18.85) 0.02
TWA (≥47 μV) 7.44 (0.82—67.59 ) 0.08
TWA + HRT (TWA ≥ 47 μV + HRT positive) 9.08 (2.22—37.8) 0.002
  1. CI: confidence intervals; DM, diabetes mellitus; LVEF, left ventricular injection fraction; HRT, heart rate turbulence; TWA, T-wave alternans; TWA + HRT, TWA combined with HRT.