Relationship between longitudinal changes in lipid composition and ischemic stroke among hypertensive patients.

Abstract

Background: Dyslipidemia was strongly linked to stroke, however the relationship between dyslipidemia and its components and ischemic stroke remained unexplained.

Aim: To investigate the link between longitudinal changes in lipid profiles and dyslipidemia and ischemic stroke in a hypertensive population.

Methods: Between 2013 and 2014, 6094 hypertension individuals were included in this, and ischemic stroke cases were documented to the end of 2018. Longitudinal changes of lipid were stratified into four groups: (1) Normal was transformed into normal group; (2) Abnormal was transformed into normal group; (3) Normal was transformed into abnormal group; and (4) Abnormal was transformed into abnormal group. To examine the link between longitudinal changes in dyslipidemia along with its components and the risk of ischemic stroke, we utilized multivariate Cox proportional hazards models with hazard ratio (HR) and 95%CI.

Results: The average age of the participants was 62.32 years ± 13.00 years, with 329 women making up 54.0% of the sample. Over the course of a mean follow-up of 4.8 years, 143 ischemic strokes happened. When normal was transformed into normal group was used as a reference, after full adjustments, the HR for dyslipidemia and ischemic stroke among abnormal was transformed into normal group, normal was transformed into abnormal group and abnormal was transformed into abnormal group were 1.089 (95%CI: 0.598-1.982; P = 0.779), 2.369 (95%CI: 1.424-3.941; P < 0.001) and 1.448 (95%CI: 1.002-2.298; P = 0.047) (P for trend was 0.233), respectively.

Conclusion: In individuals with hypertension, longitudinal shifts from normal to abnormal in dyslipidemia-particularly in total and low-density lipoprotein cholesterol-were significantly associated with the risk of ischemic stroke.