Patient characteristics
| Acute ICH patients | |
| (n=217) | |
| Demographics | |
| Age (years) (median, IQR) | 70 (60–80) |
| Sex (F) (n, %) | 86 (39.6) |
| Medical History | |
| Diabetes (n, %) | 41 (18.9) |
| Arterial hypertension (n, %) | 175 (80.7) |
| Previous ischaemic stroke (n, %) | 16 (7.4) |
| Previous haemorrhagic stroke (n, %) | 5 (2.3) |
| Prior anticoagulants use | 37 (18.0) |
| Baseline clinical and radiological features | |
| NIHSS (median, IQR) | 10 (5–20) |
| GCS (median, IQR) | 15 (11–15) |
| Initial ICH volume (mL) (median, IQR) | 18.9 (5.5–34.2) |
| Known onset time (n, %) | 103 (47.5) |
| Onset-to-imaging time (min) (median, IQR) | 225 (109–392) |
| uHG (mL/h) (median, IQR) | 4.4 (1.3–12.2) |
| ICH location deep (n, %) | 116 (53.5) |
| Radiological markers of expansion | |
| Spot Sign (n, %) | 69 (31.8) |
| Hypodensity sign (n, %) | 74 (34.1) |
| Blend sign (n, %) | 32 (14.8) |
| Black hole (n, %) | 27 (12.4) |
| Island sign (n, %) | 54 (24.9) |
| Radiological outcomes | |
| Significant HE (≥6 mL or≥33%) | 51 (23.5) |
| Severe HE (≥12.5 mL or≥66%) | 35 (16.1) |
| Absolute HE (mL) (median, IQR) | 0.2 (0–4.5) |
| Relative HE (%) (median, IQR) | 2% (0–19) |
| Follow-up ICH volume | 20.1 (6.4–43.5) |
GCS, Glasgow Coma Scale; HE, haematoma expansion; ICH, intracerebral haematoma; NIHSS, National Institutes of Health Stroke Scale; uHG, ultra-early haematoma growth.