Table 1 Analysis of sample characteristics
Development set (n = 12,136) | Test set (n = 4221)* | Full inference set (n = 15,694)* | |
|---|---|---|---|
N(%) or Mean ± SD† | |||
Age | 74.7 ± 7.1 | 73.8 ± 6.7 | 74.3 ± 6.9 |
Female | 6,823 (56.2%) | 2,538 (60.1%) | 9,104 (58.0%) |
Race | |||
Black | 576 (4.7%) | 245 (5.8%) | 802 (5.1%) |
Hispanic | 241 (2.0%) | 106 (2.5%) | 340 (2.2%) |
Other | 946 (7.8%) | 342 (8.1%) | 1242 (7.9%) |
Unknown | 233 (1.9%) | 73 (1.7%) | 297 (1.9%) |
White | 10,140 (83.6%) | 3,455 (81.9%) | 13,013 (82.9%) |
Active smoker | 535 (4.4%) | 183 (4.3%) | 695 (4.4%) |
Systolic blood pressure, mmHg‡ | 131 ± 16 | 131 ± 16 | 131 ± 16 |
Diastolic blood pressure, mmHg‡ | 75 ± 9 | 75 ± 9 | 75 ± 9 |
Height, cm‡ | 165.6 ± 10.7 | 164.8 ± 10.7 | 165.2 ± 10.7 |
Weight, kg‡ | 77.1 ± 18.0 | 75.8 ± 17.6 | 76.4 ± 17.7 |
Body mass index, kg/m2‡ | 28.0 ± 5.6 | 27.7 ± 5.4 | 27.9 ± 5.5 |
Anti-hypertensive medication use | 9022 (74.3%) | 2952 (69.9%) | 11,380 (72.5%) |
Hypertension | 9539 (78.6%) | 3185 (75.5%) | 12,128 (77.3%) |
Diabetes | 3115 (25.7%) | 1031 (24.4%) | 3,934 (25.1%) |
Myocardial infarction | 1176 (9.7%) | 301 (7.1%) | 1393 (8.9%) |
Heart failure | 1891 (17.1%) | 444 (10.5%) | 2245 (14.3%) |
CHARGE-AF score‡ | 13.7 ± 1.0 | 13.5 ± 0.9 | 13.6 ± 1.0 |
Prevalent AF | 2133 (17.6%) | 0 (0%) | 0 (0%) |
2-year incident AF (n, cumulative %) | 309 (3.7%) | 119 (3.2%) | 411 (3.1%) |
