Table 1.
Participant characteristics
| Women | Men | Both | |
|---|---|---|---|
| N | 18,916 | 16,133 | 35,049 |
| Age at time of MRI | 64 (8) | 65 (8) | 64 (8) |
| BMI (kg/m2) | 26 (5) | 27 (4) | 26 (4) |
| Height (cm) | 163 (6) | 176 (7) | 169 (9) |
| Weight (kg) | 69 (13) | 83 (13) | 75 (15) |
| Systolic blood pressure (mmHg) | 136 (19) | 142 (17) | 139 (19) |
| Diastolic blood pressure (mmHg) | 77 (10) | 81 (10) | 79 (10) |
| Left atrium maximum volume (cm3) | 64 (15) | 79 (19) | 71 (18) |
| Left atrium minimum volume (cm3) | 28 (9) | 37 (12) | 32 (11) |
| Left atrium stroke volume (cm3) | 36 (8) | 43 (11) | 39 (10) |
| Left atrium emptying fraction (%) | 57 (8) | 54 (7) | 56 (8) |
| Mitral regurgitation (%) | 10 (0) | 9 (0) | 19 (0) |
| Mitral stenosis (%) | 3 (0) | 0 (0) | 3 (0) |
| Heart failure (%) | 0 (0) | 0 (0) | 0 (0) |
| Hypertrophic cardiomyopathy (%) | 0 (0) | 0 (0) | 0 (0) |
| Congenital heart disease (%) | 3 (0) | 1 (0) | 4 (0) |
| Aortic valve disease (%) | 18 (0) | 21 (0) | 39 (0) |
| Atrial fibrillation or flutter (%) | 0 (0) | 0 (0) | 0 (0) |
Characteristics of the participants who contributed to the GWAS are listed as mean (standard deviation). Count data are listed as number (%).