Table 3. Hazard ratios for MADIT II risk score components for sudden arrhythmic death and all-cause mortality.

		SCD/VT/VF		Total mortality
	Predictor	Hazard ratio (95% CI)	P value	Hazard ratio (95% CI)	P value
Without SAI QRST	NYHA CHF class >II	1.58(1.12–2.23)	0.009	1.67 (1.11–2.52)	0.014
	Atrial fibrillation	3.43(0.84–14.05)	0.087	3.26(0.45–23.72)	0.244
	QRS >120 ms	1.40(0.99–1.98)	0.060	1.61(1.07–2.41)	0.023
	Age >70yrs	1.07(0.73–1.57)	0.736	2.10(1.38–3.18)	0.001
	BUN >25 mg/dL	1.29(0.88–1.89)	0.186	1.98(1.30–3.02)	0.002
With SAI QRST	NYHA CHF class >II	1.57(1.11–2.21)	0.011	1.22(0.75–1.98)	0.419
	Atrial fibrillation	3.47(0.85–14.26)	0.084	3.42(0.47–24.99)	0.225
	QRS >120 ms	1.01(0.66–1.53)	0.977	2.00(1.31–3.06)	0.001
	Age >70y	1.00(0.67–1.47)	0.92	1.98(1.30–3.02)	0.002
	BUN >25 mg/dL	1.28(0.87–1.87)	0.212	1.66(1.10–2.51)	0.015
	SAI QRST per 100 mV*ms	1.33(1.11–1.59)	0.002	1.27(1.03–1.55)	0.022