Table 2.

Risk for Atrial Fibrillation (N=13,840)

	Events/No. At Risk	Model 1* OR (95%CI)	P-value	Model 2† OR (95%CI)	P-value	P-interaction‡
APC
No	876/12,890	Ref	-	Ref	-	-
Yes	139/950	1.94 (1.58, 2.36)	<0.001	1.92 (1.57, 2.35)	<0.001
Race
Black	221/5,123	1.84 (1.23, 2.74)	0.0027	1.78 (1.19, 2.67)	0.0051	0.56
White	794/8,717	1.98 (1.57, 2.50)	<0.001	1.98 (1.57, 2.50)	<0.001
Sex
Female	436/7,776	1.91 (1.39, 2.61)	<0.001	1.95 (1.42, 2.68)	<0.001	0.66
Male	579/6,064	1.99 (1.54, 2.58)	<0.001	1.93 (1.49, 2.51)	<0.001

^*Adjusted for age, sex, race, education, income, and geographic region.

^†Adjusted for Model 1 covariates plus systolic blood pressure, high-density lipoprotein cholesterol, total cholesterol, body mass index, smoking, diabetes, antihypertensive medications, left ventricular hypertrophy, and prior cardiovascular disease.

^‡Interactions tested using Model 2.

APC=atrial premature complex; CI=confidence interval; OR=odds ratio.