| Watershed infarction (n = 42) | Non-watershed infarction (n = 136) | χ2 value | P value |
Intracranial stenosis (n, %) | 6 (14.3) | 46 (33.8) | 5.924 | 0.015 |
Extratracranial stenosis (n, %) | 22 (52.4) | 22 (16.2) | 22.603 | 0.000 |
Combined stenosis (n, %) | 10 (23.8) | 33 (24.3) | 0.004 | 0.952 |
No detectable stenosis (n, %) | 4 (9.5) | 35 (25.7) | 4.929 | 0.026 |