Univariate logistic regression analysing the effect of confounders on stroke recurrence at 3, 6 and 12 months after initial ischaemic stroke
| Variables | Stroke recurrence OR (95% CI) | ||
| 3 months | 6 months | 12 months | |
| Age | 1.588 (1.418 to 1.778) | 1.759 (1.584 to 1.953) | 1.771 (1.602 to 1.958) |
| Male gender | 1.245 (1.115 to 1.389) | 1.291 (1.168 to 1.428) | 1.265 (1.148 to 1.394) |
| Baseline NIHSS | 1.057 (1.050 to 1.063) | 1.060 (1.054 to 1.066) | 1.058 (1.051 to 1.064) |
| Hypertension | 1.044 (0.932 to 1.169) | 1.078 (0.971 to 1.196) | 1.141 (1.031 to 1.262) |
| Hyperlipidaemia | 0.983 (0.828 to 1.168) | 0.997 (0.852 to 1.166) | 1.008 (0.867 to 1.171) |
| Diabetes mellitus | 1.175 (1.034 to 1.335) | 1.230 (1.095 to 1.382) | 1.257 (1125 to 1.406) |
| Coronary heart disease | 1.540 (1.340 to 1769) | 1.554 (1.367 to 1.766) | 1.634 (1.445 to 1.848) |
| Atrial fibrillation | 2.361 (2.002 to 2.785) | 2.358 (2.020 to 2.753) | 2.370 (2.038 to 2.756) |
| History of TIA or stroke | 1.683 (1.509 to 1.877) | 1.708 (1.545 to 1.888) | 1.783 (1.619 to 1.964) |
| Family history of stroke | 0.930 (0.784 to 1.103) | 0.853 (0.728 to 1.000) | 0.866 (0.744 to 1.007) |
| History of smoking | 0.787 (0.703 to 0.881) | 0.788 (0.711 to 0.874) | 0.799 (0.723 to 0.882) |
| History of heavy alcohol use | 0.743 (0.606 to 0.911) | 0.712 (0.590 to 0.859) | 0.691 (0.576 to 0.829) |
| Antithrombotic therapy | 1.411 (1.233 to 1.614) | 1.424 (1.258 to 1.611) | 1.399 (1.240 to 1.577) |
| Pneumonia | 3.157 (2.764 to 3.605) | 3.059 (2.698 to 3.468) | 2.915 (2.577 to 3.298) |
| Urinary tract infection | 2.306 (1.848 to 2.876) | 2.426 (1.975 to 2.980) | 2.196 (1.791 to 2.693) |
NIHSS, National Institute of Health Stroke Scale; TIA, transient ischaemic attack.