Table 2.

Risk of ICD Shock for VT/VF or Sudden Arrhythmic Death (Primary Endpoint)

Variable	Univariate Hazard Ratio (95% CI)	p-value	Adjusted Hazard Ratio (95% CI)	p-value
Scar Absence (QRS-score < vs.  1 point)	0.52 (0.31–0.88)	0.01	0.58 (0.34–0.997)	0.049
High LVEF (≥vs. < 25%)	0.53 (0.40–0.71)	<0.001	0.55 (0.41–0.74)	<0.001
No A fib/flutter (No vs. Yes)	0.55 (0.36–0.84)	0.006	0.61 (0.39–0.96)	0.03
NYHA HF Class II (II vs. III)	0.68 (0.50–0.90)	0.008	0.74 (0.55–1.003)	0.053
Low Creatinine (≤vs. >1.3 mg/dl)	0.73 (0.54–1.002)	0.052	0.76 (0.55–1.05)	0.10
Narrow QRS duration (≤vs. >120 ms)	0.87 (0.65–1.16)	0.34	0.95 (0.63–1.43)	0.82
Low Heart rate (< vs. ≥80 beats/min)	0.92 (0.69–1.23)	0.57	0.99 (0.73–1.33)	0.95
No LBBB (No vs. Yes)	0.93 (0.66–1.30)	0.66	1.05 (0.65–1.68)	0.85
Young Age (≤vs. >70 yrs)	0.95 (0.68–1.34)	0.78	1.04 (0.73–1.50)	0.82
No Diabetes (No vs. Yes)	0.96 (0.70–1.30)	0.78	0.93 (0.67–1.27)	0.63
Nonischemic HF (Nonischemic vs. Ischemic)	1.01 (0.76–1.33)	0.96	1.03 (0.77–1.39)	0.83

HF = heart failure; LBBB = left bundle branch block; LVEF = left ventricular ejection fraction; NYHA = New York Heart Association; VT/VF = ventricular tachycardia or fibrillation.