Table 1. Clinical characteristics of the study samples by cohort.
No. of individuals | Clinical characteristic | |||||
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Cohort | Total | With AF | Without AF | Age (y)* | Women | Hypertension |
ARIC Study | 1952 | 245 | – | 57.4 ± 5.6 | 87 (35.5%) | 116 (47.3%) |
– | 1707 | 54.4 ± 5.6 | 868 (50.8%) | 488 (28.5%) | ||
CHS | 1132 | 351 | – | 73.0 ± 5.8 | 185 (52.7%) | 221 (63.0%) |
– | 781 | 72.3 ± 5.3 | 422 (54.0%) | 412 (52.8%) | ||
FHS | 994 | 152 | – | 69.1 ± 9.4 | 63 (41.4%) | 63 (41.4%) |
– | 842 | 60.8 ± 10.2 | 449 (53.3%) | 228 (27.1%) | ||
MGH | 200 | 200 | – | 52.9 ± 11.1 | 37 (18.5%) | 50 (25.0%) |
Values are presented as mean ± SD and as n (%).
AF = atrial fibrillation; ARIC = Atherosclerosis Risk in Communities; CHS = Cardiovascular Health Study; FHS = Framingham Heart Study; MGH = Massachusetts General Hospital.
Age in the FHS was assessed at the time when DNA was drawn.