Baseline characteristics, stratified by CHADS2 stroke risk categories
| Characteristics | CHADS2 risk category | |||
| Total (n=42834) | Low (n=9732) | Intermediate (n=11787) | High (n=21315) | |
| Median age (IQR) | 73 (81–107) | 57 (45–67) | 71 (62–78) | 79 (73–85) |
| Age ≥75 | 18 415 (43.0) | 0 (0) | 3591 (30.5) | 14 824 (69.6) |
| Heart failure | 11 039 (25.8) | 0 (0) | 1311 (11.1) | 9728 (45.6) |
| Hypertension | 23 125 (54.0) | 0 (0) | 5943 (50.4) | 17 182 (80.6) |
| Diabetes | 7891 (18.4) | 0 (0) | 942 (8.0) | 6949 (32.6) |
| CVA/TIA | 5388 (12.6) | 0 (0) | 0 (0) | 5388 (25.3) |
| Additional criteria for CHA2DS2-VASc score | ||||
| Ischaemic heart disease | 15 922 (37.2) | 1778 (18.3) | 3861 (32.8) | 10 299 (48.32) |
| Peripheral artery disease | 3430 (8.0) | 200 (2.1) | 618 (5.2) | 2612 (12.3) |
| Age 65–74 | 11 159 (26.1) | 2856 (29.4) | 4319 (36.6) | 3984 (18.7) |
| Female | 20 301 (47.4) | 3971 (40.8) | 5210 (44.2) | 11 120 (52.2) |
| Other co-morbidities | ||||
| Chronic kidney disease | 3265 (7.6) | 1778 (18.3) | 3861 (32.8) | 10 299 (48.3) |
| Chronic obstructive pulmonary disease | 10 266 (24.0) | 1418 (14.6) | 2516 (21.4) | 6332 (29.7) |
| Dementia | 2825 (6.6) | 61 (0.6) | 496 (4.2) | 2268 (10.6) |
| Anaemia | 7579 (17.7) | 794 (8.2) | 1653 (14.0) | 5132 (24.1) |
| Cancer | 5036 (11.8) | 765 (7.9) | 1429 (12.1) | 2842 (13.3) |
| Gastrointestinal bleed | 2192 (5.1) | 244 (2.5) | 478 (4.1) | 1470 (6.9) |
| Rural residence | 8445 (19.7) | 1827 (18.8) | 2427 (20.6) | 4191 (19.7) |
| Diagnosed by specialist | 17 750 (41.4) | 4047 (41.6) | 4741 (40.2) | 8962 (42.1) |
Values are n (%).
Specialist defined as cardiologist or internist.
CVA, cerebral vascular attack; TIA, transient ischaemic attack.