The demographic and clinical features of patients in the derivation cohort
| Characteristics | ASR n=87 | Non-ASR n=125 | P value |
| Age, years, m (IQR) | 56 (48–66) | 61 (51–71) | 0.902 |
| Male gender, n (%) | 64 (73.6%) | 91 (72.8%) | 0.117 |
| Comorbidities, n (%) | |||
| Dyslipidaemia | 7 (8.0%) | 13 (10.4%) | 0.565 |
| Diabetes mellitus | 25 (28.7%) | 36 (28.8%) | 0.992 |
| CA diseases | 67 (77.0%) | 107 (85.6%) | 0.110 |
| Ischaemic stroke or TIA | 22 (25.3%) | 43 (34.4%) | 0.158 |
| Ever-or-now smokers, n (%) | 29 (33.3%) | 25 (20.0%) | 0.029* |
| Regular drinkers, n (%) | 3 (3.4%) | 4 (3.2%) | 0.921 |
| Laboratory findings | |||
| Platelet count, ×109, m (IQR) | 216 (192–238) | 216 (200–226) | 0.790 |
| APTT, m (IQR) | 24.8 (24.5–31.7) | 24.8 (24.4–30.4) | 0.323 |
| PT, m (IQR) | 1.01 (1.00–1.07) | 1.00 (0.96–1.04) | 0.059 |
| Fibrinogen, g/L, m (IQR) | 2.8 (2.3–3.1) | 2.8 (2.4–3.6) | 0.100 |
| Antiplatelet therapy, n (%) | 0.218 | ||
| Aspirin | 71 (81.6%) | 93 (74.4%) | |
| Dual antiplatelet | 16 (18.4%) | 32 (25.6%) | |
| Haematoma location, n (%) | 0.838 | ||
| Supratentorial lobar | 23 (26.4%) | 43 (34.4%) | |
| Supratentorial deep | 57 (65.5%) | 62 (49.6%) | |
| Cerebella | 7 (8.0%) | 20 (16.0%) | |
| Haematoma volume, mL, m (IQR) | 51.8 (33.3–75.3) | 49.7 (36.2–82.2) | 0.477 |
*The difference was significant.
APTT, activated partial thromboplastin time; ASR, aspirin resistance; CA, coronary artery; PT, prothrombin time; TIA, transient ischaemic attack.