Table 2.
Proportion of patients with non-haemorrhage-related END (nhEND) and adjusted odds ratios (aORs) for nhEND by site of arterial occlusion at baseline.
| Site of occlusion | nhEND n/N | nhEND % (95% CI) | P | aOR (95% CI) for nhEND | P |
|---|---|---|---|---|---|
| ICA-T or ICA+MCA | 6/20 | 30.0 (14.6–51.9) | <0.001 | 10.3 (4.3–24.9) | <0.001 |
| ICA | 16/96 | 16.7 (10.5–25.4) | <0.001 | 4.3 (2.5–7.7) | <0.001 |
| ACA | 2/12 | 16.7 (4.7–44.8) | 0.008 | 5.9 (1.6–22.1) | 0.008 |
| MCA-M1 | 8/86 | 9.3 (4.8–17.3) | 0.002 | 2.1 (0.97–4.4) | 0.061 |
| MCA-M2 | 8/137 | 5.8 (3.0–11.1) | 0.091 | 1.6 (0.8–3.1) | 0.14 |
| MCA-M3 | 0/35 | 0.0 (0.0–9.9) | 0.287 | 0.6 (0.1–4.2) | 0.57 |
| PCA | 1/46 | 2.2 (0.4–11.3) | 0.709 | 0.4 (0.1–3.2) | 0.41 |
| Basilar | 3/29 | 10.3 (3.6–26.4) | 0.030 | 2.0 (0.6–6.6) | 0.26 |
| Vertebral | 4/56 | 7.1 (2.8–17.0) | 0.098 | 2.3 (0.96–5.5) | 0.063 |
| Site unspecified | 5/70 | 7.1 (3.1–15.7) | 0.094 | 2.7 (1.3–5.7) | 0.007 |
| Any occlusion | 53/587 | 9.0 (7.0–11.6) | <0.001 | 2.5 (1.7–3.4) | <0.001 |
| No occlusion | 55/1749 | 3.1 (2.4–4.1) | Ref. | Ref. | Ref. |
ACA: anterior cerebral artery; ICA-T: terminal internal carotid artery; ICA+MCA: tandem ICA and middle cerebral artery occlusion; M1, M2, M3: first, second, and third segments of the MCA; PCA: posterior cerebral artery; nhEND: increase in NIHSS score ≥4 at 24 h with no PH on follow-up imaging within 22–36 h; Ref: reference. Patients with no visible arterial occlusion on baseline CTA/MRA were used as reference for comparison.