Multivariate analysis of risk factors for acute stroke in patients with unilateral high-grade cervical internal carotid stenosis or occlusion.

CI, confidence interval; DM, diabetes mellitus; no., number; OR, odds ratio; ROAF, reversed ophthalmic artery flow.Model 1: Statistically significant difference determined using multivariate logistic regression with forward selection model controlled for age, gender, vascular risk factors, and cervical stenosis but not including the variable of intracranial stenosis.Model 2: Statistically significant difference determined using multivariate logistic regression with forward selection model controlled for age, gender, vascular risk factors, cervical stenosis, and ophthalmic artery flow direction.