Table 1.

AFIB Population Description 2010 NAMCS Data (weighted n = 7,669,844)

Variable	Factor	Frequency	Percent
Sex	Female	3548521	46.3
	Male	4121323	53.7
Health Insurance Status	Have Health Insurance	7428685	96.9
	Do Not Have Health Insurance	241159	3.1
Race	Caucasian	6571700	85.7
	Non-Caucasian	1098144	14.3
Poverty Percent In Patient Zip Code	<10%	3705869	48.3
	≥10%	3636363	47.4
	Unknown	327612	4.3
Education	<20% University Graduates	3003060	39.2
	≥20% University Graduates	4339172	56.6
	Unknown	327612	4.3
Geographic Locale	Rural	1288012	16.8
	Non-Rural	6205257	80.9
	Unknown	176575	2.3
Primary HCP	Yes	3128743	40.8
	No	4095339	53.4
	Unknown	445762	5.8
Warfarin	No	6297368	82.1
	Yes	1372476	17.9
Congestive Heart Failure	No	6584055	85.8
	Yes	1085789	14.2
Diabetes	No	5942040	77.5
	Yes	1727804	22.5
Hypertension	No	2512157	32.8
	Yes	5157687	67.2
History of Stroke or TIA	No	7576285	98.8
	Yes	93559	1.2
CHADS Age	<75 Years	3544600	46.2
	≥75 Years	4125244	53.8
CHADS2 Scorea	Low Score	3596112	46 .9
	High Score	4073732	53.1

^aTo calculate a CHADS₂ score 1 point is assigned to each of the variables: congestive heart failure, hypertension, ≥75 years, diabetes, and 2 points for history of stroke or TIA