Table 3.

Hazard ratios (95% CI) for sudden cardiac death comparing African Americans with Whites.^*

	Overall		Women		Men
	AAs	Whites	AAs	Whites	AAs	Whites
Events/p-y	215 / 76,344	332 / 240,514	111 / 48,983	89 / 131,436	104 / 27,361	243 / 109,078
IR per 1,000 p-y	2.8 (2.5, 3.2)	1.4 (1.2, 1.5)	2.3 (1.9, 2.7)	0.7 (0.6, 0.8)	3.8 (3.1, 4.6)	2.2 (2.0, 2.5)
Model 1†	2.12 (1.79, 2.51)	Ref (1)	3.25 (2.46, 4.29)	Ref (1)	1.60 (1.27, 2.02)	Ref (1)
Model 2‡	1.29 (1.06, 1.57)	Ref (1)	2.06 (1.53, 2.77)	Ref (1)	0.95 (0.74, 1.23)	Ref (1)
Model 3§	1.34 (1.08, 1.65)	Ref (1)	1.91 (1.40, 2.61)	Ref (1)	1.06 (0.81, 1.38)	Ref (1)
Model 4‖	1.38 (1.11, 1.71)	Ref (1)	1.91 (1.39, 2.62)	Ref (1)	1.10 (0.84, 1.45)	Ref (1)

^*Results derived from competing risk analysis using time-varying covariates.

^†Model 1: Adjusted for sex (women or men).

^‡Model 2: Additionally adjusted for education (<high School, high School, or >high school), insurance (no or yes), annual household income (<16000, 16000–< 25000, 25000–<35000, 35000–<50000, or >50000), smoking status (never, former, or current), alcohol intake (non-current or current) and physical activity (continuous).

^§Model 3: Additionally adjusted for body mass index (continuous), systolic blood pressure (continuous), anti-hypertensive medication use (no or yes), diabetes, total cholesterol (continuous), HDL-cholesterol (continuous), use of lipid lowering medications (no or yes), estimated GFR (continuous), and heart rhythm medication use (no or yes).

^‖Model 4: Additionally adjusted for heart rate (continuous), QT interval (continuous), QRS duration (continuous), LV hypertrophy (no or yes), and prevalent CHD (no or yes).

AA: African American; p-y: person-years; IR: incidence rate.