Association Between Blood Pressure and the Risk of Post-stroke Cognitive Impairment: a Retrospective Cohort Study

Patients who have been followed up for more than 3 months after stroke will be included in the study. Basic data of patients and factors that may be related to cognitive impairment will be collected, and the relationship between blood pressure and cognitive impairment after stroke will be explored by univariate regression analysis and multivariate regression analysis. Univariate logistic regression model and multivariate logistic regression model were used to explore the relationship between blood pressure level and the risk of cognitive impairment after stroke, and the effect of blood pressure level and cognitive impairment sub-line in different patients was evaluated by subgroup analysis.