Table 1

Baseline Characteristics of Total Cohort at Enrollment and New-Onset AF Without HF at AF Diagnosis

Total Cohort at Enrollment (N = 34,736)New-Onset AF Without HF at AF Diagnosis (n = 1,495)
Age, yrs55 ± 769 ± 8
Race/ethnicity
 White32,759 (94.0)1,454 (97.0)
 Black720 (2.0)12 (1.0)
 Hispanic348 (1.0)4 (<1.0)
 Other909 (3.0)25 (2.0)
BMI, kg/m226 ± 528.1 ± 6.1
Diabetes mellitus938 (3.0)172 (12.0)
Hypertension9,176 (26.0)1,140 (76.0)
SBP, mm Hg
 <12015,324 (45.0)314 (21.0)
 120–13914,604 (43.0)826 (55.0)
 140–1593,970 (11.0)311 (21.0)
 ≥160406 (1.0)43 (3.0)
Hyperlipidemia10,505 (30)954 (64)
History of coronary revascularization0 (0.0)67 (5.0)
History of MI0 (0.0)24 (2.0)
History of stroke0 (0.0)36 (2.0)
Chronic kidney disease7 (<1.0)12 (1.0)
Smoking status
 Never17,920 (52.0)720 (48.0)
 Past12,484 (36.0)696 (47.0)
 Current4,306 (12)79 (5)
EtOH ≥2 drinks/day1,360 (4.0)91 (6.0)
Physical activity, ≥7.5 METS/week18,923 (55.0)856 (57.0)
Anticoagulation use663 (44.0)
CHADSVASc score
 1159 (11.0)
 2392 (26.0)
 3523 (35.0)
 4349 (23.0)
 555 (4.0)
 616 (1.0)
 7–91 (<1.0)

Values are mean ± SD or n (%).

AF = atrial fibrillation; BMI = body mass index; EtOH = alcohol; HF = heart failure; METS = metabolic equivalents; MI = myocardial infarction; SBP = systolic blood pressure.

  • CHADSVASc score reflects thromboembolic risk: hypertension (1 point), age (65 to 74 yrs: 1 point; ≥75 yrs: 2 points), diabetes mellitus (1 point), history of stroke, transient ischemic attack, or thromboembolism (2 points), vascular disease (1 point), female (1 point).