Abstract: Objective To investigate the risk factors for leukoaraiosis. Methods 204 cases of inpatients were registered. The severity of leukoaraiosis was as the dependent variable, the possible risk factors were as independent variables, unconditional logistic regression was analyzed with SAS 9.2 software, significant level α=0.10. Results 5 factors, that were carotid stenosis, age, low density lipoprotein cholesterol,apolipoprotein B and apolipoprotein A, were included, in which the former 4 were risk factors (OR>1, P<0.05), the latter was protection factor (OR=0.715, P=0.0993). Conclusion The vascular risk factors contribute to formation of leukoaraiosis, and carotid stenosis relate to leukoaraiosis.

Key words: leukoaraiosis, atherosclerosis, carotid stenosis, regression analysis