Table 1. Baseline Characteristics of Individuals in the Biobank Study Populations.
| Characteristic | No. (%)a | |
|---|---|---|
| UK Biobank (n = 184 511) | MGB Biobank (n = 30 716) | |
| Age, mean (SD), y | 56.51 (8.05) | 57.23 (17.26) |
| Men | 83 680 (45.35) | 13 935 (45.37) |
| Women | 100 831 (54.65) | 16 779 (54.63) |
| Self-reported White ethnicity | 161 401 (87.48) | 25 797 (84.04) |
| Smoking initiation | 81 909 (44.44) | NA |
| High alcohol consumption | 69 059 (37.43) | NA |
| Obesity | 44 119 (24.01) | 4134 (28.64) |
| Heart failure | 3157 (1.71) | 5165 (16.82) |
| Hypertension | 59 542 (32.27) | 13 820 (45.03) |
| Atrial defibrillation | 6393 (3.46) | 5662 (18.45) |
| Type 2 diabetes | 8981 (4.87) | 2996 (9.76) |
| Coronary artery disease | 11 692 (6.34) | 3300 (10.74) |
| Hypertrophic cardiomyopathy | 204 (0.11) | 292 (0.95) |
Abbreviations: MGB, Mass General Brigham; NA, not available.
a
Disease counts are of all cases (prevalent and incident).