Sample characteristics by type of prior antiplatelet and anticoagulant use
| Total | None | Aspirin | Aspirin plus dipyridamole | Clopidogrel | Warfarin | |
| Patients | 3308 | 1763 (53) | 1140 (34) | 94 (3) | 74 (2) | 237 (7) |
| Age group | ||||||
| <65 | 447 (14) | 317 (18) | 98 (9) | 6 (6) | 10 (14) | 16 (7) |
| 65–74 | 653 (20) | 361 (20) | 215 (19) | 13 (14) | 18 (24) | 46 (19) |
| 75–84 | 1300 (39) | 641 (36) | 455 (40) | 53 (56) | 29 (39) | 134 (51) |
| >85 | 908 (27) | 444 (27) | 372 (33) | 22 (23) | 17 (23) | 53 (22) |
| Gender | ||||||
| Men | 1570 (47) | 791 (45) | 562 (49) | 51 (54) | 34 (46) | 132 (56) |
| Women | 1738 (53) | 972 (55) | 578 (51) | 43 (46) | 40 (54) | 105 (44) |
| Premorbid Rankin* | ||||||
| 0 | 2161 (70) | 1206 (73) | 706 (66) | 49 (57) | 48 (70) | 152 (70) |
| 1 | 236 (8) | 110 (7) | 81 (8) | 16 (19) | 5 (7) | 24 (11) |
| 2 | 216 (7) | 107 (7) | 84 (8) | 5 (6) | 6 (9) | 14 (6) |
| 3 | 298 (10) | 139 (8) | 127 (12) | 10 (12) | 7 (10) | 15 (7) |
| 4 | 134 (4) | 63 (4) | 53 (5) | 4 (5) | 2 (3) | 12 (5.5) |
| 5 | 43 (1) | 17 (1) | 23 (2) | 2 (2) | 0 (0) | 1 (0) |
| Ischaemic stroke | 2838 (86) | 1499 (85) | 1009 (89) | 86 (91) | 63 (84) | 181 (70) |
| Haemorrhagic stroke | 470 (14) | 264 (15) | 131 (11) | 8 (9) | 11 (15) | 56 (21) |
| OCSP classification | ||||||
| TACS | 809 (26) | 366 (22) | 259 (24) | 28 (32) | 17 (24) | 58 (27) |
| PACS | 1053 (34) | 577 (35) | 359 (33) | 26 (30) | 28 (39) | 63 (29) |
| POCS | 489 (16) | 430 (26) | 165 (15) | 23 (26) | 12 (17) | 34 (16) |
| LACS | 721 (23) | 267 (16) | 366 (22) | 11 (13) | 14 (20) | 54 (25) |
| Unspecified | 49 (2) | 27 (2) | 27 (1) | 0 (0) | 0 (0) | 6 (3) |
Data presented are number (%).
↵* Premorbid Rankin: 0: no symptoms at all; 1: no significant disability despite symptoms, able to carry out all usual duties and activities; 2: slight disability; unable to carry out all previous activities but able to look after own affairs without assistance; 3: moderate disability, requiring some help, but able to walk without assistance; 4: moderately severe disability, unable to walk without assistance and unable to attend to own bodily needs without assistance; 5: severe disability, bedridden, incontinent and requiring constant nursing care and attention.
LACS, lacunar stroke; OCSP, Oxfordshire Community Stroke Project; PACS, partial anterior circulation stroke; POCS, posterior circulation stroke; TACS, total anterior circulation stroke.