Table 1.
Characteristics of AF cohort, 2009–2015
| Entire cohort | <$40 000 | $40–$59 000 | $60–$74 000 | $75–$99 000 | ≥$100 000 | |
| No. of individuals | 336 736 | 129 845 | 62 833 | 34 685 | 41 246 | 68 127 |
| Demographics | ||||||
| Age, years (mean (SD)) | 72.7 (11.9) | 77.2 (9.3) | 73.5 (11.1) | 71.4 (11.8) | 69.6 (12.3) | 66 (12.8) |
| Women | 149 865 (44.5) | 73 896 (56.9) | 26 426 (42.1) | 13 421 (38.7) | 14 963 (36.3) | 21 159 (31.1) |
| Race | ||||||
| White | 277 964 (82.6) | 101 939 (78.5) | 51 418 (81.8) | 28 913 (83.4) | 35 210 (85.4) | 60 484 (88.8) |
| Black | 28 286 (8.4) | 15 262 (11.8) | 5532 (8.8) | 2617 (7.6) | 2414 (5.9) | 2461 (3.6) |
| Asian | 6976 (2.1) | 1954 (1.5) | 1155 (1.8) | 780 (2.3) | 1015 (2.5) | 2072 (3) |
| Hispanic | 23 510 (7.0) | 10 690 (8.2) | 4728 (7.5) | 2375 (6.9) | 2607 (6.3) | 3110 (4.6) |
| Education | ||||||
| <High School | 103 579 (30.8) | 61 581 (47.4) | 20 952 (33.4) | 8894 (25.6) | 7648 (18.5) | 4504 (6.6) |
| <Bachelor’s degree | 188 007 (55.8) | 64 051 (49.3) | 37 173 (59.2) | 22 184 (64) | 27 102 (65.7) | 37 497 (55.0) |
| >Bachelor’s degree | 45 150 (13.4) | 4213 (3.2) | 4708 (7.5) | 3607 (10.4) | 6496 (15.8) | 26 126 (38.4) |
| Comorbidities | ||||||
| CHA2DS2-VASc (mean (SD)) | 4.1 (2.0) | 4.7 (1.8) | 4.2 (1.9) | 3.8 (2.0) | 3.6 (2.0) | 3.0 (2.0) |
| Hypertension | 275 630 (82.8) | 113 145 (87.9) | 52 605 (84.6) | 28 262 (82.5) | 32 538 (80.0) | 49 080 (73.3) |
| Diabetes | 176 929 (34.9) | 75 342 (38.6) | 34 336 (36.9) | 18 176 (35.4) | 20 502 (33.0) | 28 573 (27.1) |
| Prior CHD | 148 841 (44.2) | 62 204 (47.9) | 29 159 (46.4) | 15 446 (44.5) | 17 346 (42.1) | 24 686 (36.2) |
| Prior HF | 110 242 (32.7) | 50 549 (38.9) | 21 176 (33.7) | 10 746 (31) | 11 773 (28.5) | 15 998 (23.5) |
| Prior stroke | 88 607 (26.3) | 39 746 (30.6) | 17 273 (27.5) | 8717 (25.1) | 9763 (23.7) | 13 108 (19.2) |
| COPD | 116 482 (34.6) | 52 986 (40.8) | 22 572 (35.9) | 11 416 (32.9) | 12 573 (30.5) | 16 935 (24.9) |
| CKD | 70 388 (20.9) | 33 176 (25.6) | 13 862 (22.1) | 6867 (19.8) | 7326 (17.8) | 9157 (13.4) |
| Oral anticoagulant use | 86 702 (25.8) | 31 182 (24.0) | 16 210 (25.8) | 9274 (26.8) | 11 277 (27.3) | 18 759 (27.5) |
Values correspond to N (percentage) unless otherwise stated.
AF, atrial fibrillation; CHA2DS2-VASc, congestive heart failure, hypertension, age ≥75 years, diabetes mellitus, stroke/transient ischaemic attack, vascular disease, age 65–75 years and sex category.; CHD, coronary heart disease; CKD, chronic kidney disease; COPD, chronic obstructive pulmonary disease; HF, heart failure.