Table 2. Prevalence of atrial fibrillation by electrocardiogram and/or self-report among study participants with and without each component of the metabolic syndrome.

	Atrial Fibrillation by electrogardiogram and/or self-report
	N (Prevalence)	P-Value
Systolic/diastolic blood pressure ≥ 130/85 mmHg or use of antihypertensive medication
Yes	15,904 (9.2%)	<0.001
No	7,746 (6.6%)
Serum HDL-cholesterol <40 mg/dL in men and <50 mg/dL in women
Yes	8,292 (9.4%)	<0.001
No	15,358 (7.7%)
Serum triglycerides ≥ 150 mg/dl
Yes	6,192 (9.0%)	0.03
No	17,458 (8.1%)
Serum glucose ≥ 100 mg/dL or use of glucose lowering medication
Yes	9,172 (9.4%)	<0.001
No	14,478 (7.7%)
Waist circumference ≥ 102 cm in males and ≥ 88 cm in females
Yes	11,381 (8.9%)	0.001
No	12,269 (7.8%)
Metabolic Syndrome
Yes	9,421 (9.6%)	<0.001
No	14,229 (7.5%)

Components of the metabolic syndrome include systolic blood pressure ≥130 mmHg or diastolic blood pressure ≥ 85 mmHg or use of antihypertensive medication, serum HDL-cholesterol <40 mg/dL in men and <50 mg/dL in women, serum triglycerides ≥ 150 mg/dl, serum glucose ≥ 100 mg/dL or use of glucose lowering medication, and waist circumference ≥ 102 cm in males and ≥ 88 cm in females.