Any Shock vs. no shock Any Appropriate shock vs. no appropriate shock Any Inappropriate shock vs. no inappropriate shock Any Appropriate vs. no shock Any inappropriate shock vs. no shock Total mortality 0.81, 0.19-3.34 1.36,0.41-4.49 0.75, 0.38-1.48 1.06, 0.50-2.23 1.63, 0.48-5.46 Arrhythmic death 0.23, 0.01-3.55 2.73, 0.26-28.74 1.49, 0.43-5.17 0.68, 0.17-2.65 1.29, 0.14-11.98 Cardiac death 0.42, 0.06-2.67 2.4, 0.48-11.84 0.98, 0.45-2.12 1.04, 0.42-2.56 2.23, 0.47-10.56 Recurrent VT/VF  0.93,0.25-3.42 3.41, 1.15-10.08* 0.47, 0.29-0.76* 2.68,1.35-5.33* 0.81,0.31-2.12 (Beta-blocker, angiotensin converting enzyme inhibitor, aspirin, warfarin use, history of MI, smoking, age, sex, diabetes mellitus, hypertension, left ventricular ejection fraction, renal disease and lipid lowering therapy. All data represented as HR, 95% CI. All p=NS unless mentioned.*p value <0.05)

Table 3: Final Multivariate Hazard Ratios for Cardiovascular outcomes.