Association of BIRC5 Gene Polymorphism with the Collateral Circulation and Severity of Large Artery Atherosclerotic Stroke

Table 2

Correlation between the collateral circulation condition and the vascular stenosis degree.

Stenosis degree	Good group (cases, %)	Poor group (cases, %)
70% ≤ Stenosis < 100%	16 (8.99%)	212 (84.80%)
Occlusion	162 (91.01%)	38 (15.20%)
Total	178	250
χ^2	240.052
	≤0.001