Parameters HR 95%CI P-value
Cause 0.294 0.040-2.144 0.227
Age 0.086 0.975-1.096 0.086
History of HF (months) 0.989 0.973-1.007 0.225
LVEF 0.975 0.866-1.096 0.668
HBP 2.537 0.406-15.840 0.319
Medication
β-blocker 0.494 0.049-5.003 0.550
Amiodarone 0.989 0.973-1.007 0.225