Table 3 Functional outcome at 3 months against change in NIHSS at 2 h in HMCAS-D and HMCAS-P subgroups
| Change in NIHSS score at 2 h after baseline | Good functional outcome (mRS 0–2 at 3 months) (n (%)) (p = 0.01) | |
| HMCAS-D | HMCAS-P | |
| <0 (i.e. worsening) | 20 (27.4%) | 12 (10.1%) |
| = 0 (no change) | 34 (19.9%) | 29 (12.9%) |
| = 1 (improvement) | 23 (37.1%) | 6 (7.1%) |
| = 2 | 28 (40.6%) | 15 (23.1%) |
| = 3 | 27 (42.2%) | 17 (40.5%) |
| = 4 | 20 (43.5%) | 5 (15.6%) |
| = 5 | 11 (39.3%) | 10 (50.0%) |
| >5 | 115 (71.4%) | 29 (49.2%) |
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HMCAS-D, hyperdense middle cerebral artery sign, disappearance; HMCAS-P, hyperdense middle cerebral artery sign, persistence; mRS, median Rankin Scale score; NIHSS, National Institute of Health Stroke Scale.
