ACE and Hypertension: Table 5 shows the hazard ratio (HR) of SMS on cardiac death after correction for potential confounders including age, gender, BMI, hypertension, diabetes, hyperlipidemia, QRS duration, NYHA class, ACE inhibitors/ARBs, β-blockers, diuretics, digoxin, LVEFecho, EDV, ESV, LVEF, STS, PBW, mean, PSD and PE.