Table 5.

Associations between related risk factors and intracranial arterial stenosis (ICAS) according to multivariable logistic regression analysis.

Category	Subcategory	Fully adjusted model* OR (95% CI)	p value
Gender	Female	Reference
	Male	1.446 (1.141–1.834)	0.002
Age	40–49	Reference
	50–59	0.944 (0.734–1.215)	0.656
	60–69	0.927 (0.707–10215)	0.582
	⩾70	1.039 (0.721–10498)	0.836
Education	Elementary or below	Reference
	Middle school	0.751 (0.584–0.966)	0.026
	High school or above	0.644 (0.451–0.919)	0.015
Residence	Urban	Reference
	Rural	1.528 (1.716–1.985)	0.002
Drinking	No	Reference
	Yes	0.912 (0.704–1.182)	0.488
Smoking	No	Reference
	Yes	1.154 (0.923–1.441)	0.209
Hypertension	No	Reference
	Yes	1.655 (1.341–2.043)	<0.001
Personal history of stroke	No	Reference
	Yes	1.854 (1.371–2.508)	<0.001

CI, confidence interval.

Parameters with a p value of <0.1 in univariate analysis were eligible for inclusion in the multiple logistic regression model.

^*Adjusted for gender, age, educational level, place of residence, alcohol consumption, smoking, hypertension and personal history of stroke.