Patients with GP-coded atrial fibrillation prior to first stroke
| GP-coded atrial fibrillation | Male | Female | Total | ||||||
| n | % | 95% CI | n | % | 95% CI | n | % | 95% CI | |
| Number of patients (% of cohort) | 1411 | 9.8 | 2072 | 11.6 | 3483 | 10.8 | |||
| Baseline characteristics | |||||||||
| Mean (SD) age | 77.3 (9.8) | (76.8 to 77.8) | 82.4 (8.7) | (82.0 to 82.8) | 80.3 (9.5) | (80.0 to 80.6) | |||
| CHADS2 score prior to initial stroke (% of AF patients) | |||||||||
| 0 | 217 | 15.4 | (13.5 to 17.3) | 127 | 6.1 | (5.1 to 7.2) | 344 | 9.9 | (8.9 to 10.9) |
| 1 | 601 | 42.6 | (40.0 to 45.2) | 730 | 35.2 | (33.2 to 37.3) | 1331 | 38.2 | (36.6 to 39.8) |
| 2 | 430 | 30.5 | (28.1 to 32.9) | 877 | 42.3 | (40.2 to 44.5) | 1307 | 37.5 | (35.9 to 39.1) |
| 3 | 108 | 7.7 | (6.3 to 9.0) | 213 | 10.3 | (9.0 to 11.6) | 321 | 9.2 | (8.3 to 10.2) |
| 4 | 49 | 3.5 | (2.5 to 4.4) | 111 | 5.4 | (4.4 to 6.3) | 160 | 4.6 | (3.9 to 5.3) |
| 5 | 6 | 0.4 | (0.1 to 0.8) | 14 | 0.7 | (0.3 to 1.0) | 20 | 0.6 | (0.3 to 0.8) |
| Treatments in year prior to initial stroke (at least 2 prescriptions) (% of AF patients) | |||||||||
| Anticoagulants | 415 | 29.4 | (27.0 to 31.8) | 461 | 22.2 | (20.5 to 24.0) | 876 | 25.2 | (23.7 to 26.6) |
| Antiplatelet drugs | 668 | 47.3 | (44.7 to 49.9) | 1128 | 54.4 | (52.3 to 56.6) | 1796 | 51.6 | (49.9 to 53.2) |
| Follow-up | |||||||||
| Died within 56 days of initial stroke (% of AF patients) | 264 | 18.7 | (16.7 to 20.7) | 554 | 26.7 | (24.8 to 28.6) | 818 | 23.5 | (22.1 to 24.9) |
| Survived at least 56 days following initial stroke (% of AF patients) | 1147 | 81.3 | (79.3 to 83.3) | 1518 | 73.3 | (71.4 to 75.2) | 2665 | 76.5 | (75.1 to 77.9) |
| Treatments in year following initial stroke (at least 2 prescriptions) (% of patients who survived at least 56 days) | |||||||||
| Anticoagulants | 545 | 47.5 | (44.9 to 50.1) | 529 | 34.8 | (32.8 to 36.9) | 1074 | 40.3 | (38.7 to 41.9) |
| Antiplatelet drugs | 566 | 49.3 | (46.7 to 52) | 806 | 53.1 | (50.9 to 55.2) | 1372 | 51.5 | (49.8 to 53.1) |
AF, atrial fibrillation; GP, general practitioner.