Demographics of study population
| Characteristics | Number (%) (n=5969) |
| Age, mean ± SD, years | 67.2±11.0 |
| Male | 2751 (46.1) |
| Hypertension | 4948 (82.9) |
| Diabetes mellitus | 2742 (45.9) |
| Coronary artery disease | 313 (5.2) |
| Previous myocardial infarction | 46 (0.8) |
| Heart failure | 54 (0.9) |
| Previous stroke | 271 (4.5) |
| Previous intracranial haemorrhage | 35 (0.6) |
| CHA2DS2-VASc score | 2.8±1.3 |
CHA2DS2-VASc score ( C : congestive heart failure [1 point]; H : hypertension [1 point]; A2 : age 65-74 years [1 point] and age ≥75 years [2 points]; D : diabetes mellitus [1 point]; S : prior stroke or transient ischemic attack [2 points]; VA : vascular disease [1 point]; and Sc : sex category [female] [1 point])