Table 3. Baseline data description.
| Variables | Number of participants N=3931 |
|---|---|
| Age (years), mean SD | 72.1±15.1 |
| Sex, female, N (%) | 1806 (45.9%) |
| Ethnic origin, N (%) | |
| White | 2365 (60.2%) |
| Black | 649 (16.5%) |
| Asian | 511 (13%) |
| Other | 216 (5.5%) |
| Not known | 190 (4.8%) |
| Stroke type, N (%) | |
| Ischaemic stroke | 3371 (85.8%) |
| Intracerebral haemorrhage | 560 (14.2%) |
| Medical history, N (%) | |
| History of stroke/TIA | 703 (17.9%) |
| Hypertension | 2506 (63.7%) |
| AF | 956 (24.3%) |
| Heart failure (3929 complete) | 183 (4.7%) |
| Diabetes mellitus | 1034 (26.3%) |
| Acute treatments | |
| Thrombolysis (3930 complete) | 616 (18.1%) |
| Thrombectomy | 294 (7.5%) |
| Clinical features, N (%) | |
| Admission NIHSS 0–3 | 1688 (43.0%) |
| Admission NIHSS ≥4 | 2240 (57.0%) |
| Premorbid mRS | 3931 (100%) |
| Discharge mRS | 3931 (100%) |
| Discharge mRS, median (IQR) | |
| Brain imaging, N (%) | |
| CT (at UCLH) | 3596 (95.6%) |
| CTA (at UCLH) | 2231 (62%) |
| MRI (at UCLH) | 2234 (57%) |
| MRA (at UCLH) | 368 (16.5%) |
Table showing baseline characteristics and completeness of clinical and brain imaging data.
AF, atrial fibrillation; CTA, CT angiography; ESD, early supported discharge; MRA, magnetic resonance angiography; mRS, modified Rankin Scale; NIHSS, National Institute of Health Stroke Severity Scale; TIA, transient ischaemic attack; UCLH, University College London Hospitals.