Association between pulse pressure and ischaemic stroke in elderly patients with hypertension

Jiayi Huang, Lin Liu, Yu Qing Huang, Kenneth Lo, Yu Ling Yu, Chao Lei Chen, Song Tao Tang, Bin Zhang, Ying Qing Feng

Research output: Journal article publicationJournal articleAcademic researchpeer-review

Abstract

Background: The association between pulse pressure (PP) and the risk of first ischaemic stroke (IS) is inconsistent. Therefore, we evaluated the association between PP and the risk of first IS among elderly hypertensive population in China. Methods: This was a retrospective cohort study. Patients with hypertension and aged ≥60 years were recruited. Multivariate Cox regression was performed to evaluate the association between PP and the risk of IS. We further stratified the regression models into subgroups and test for interaction to assess whether the associations were modified by other covariates. Results: A total of 3315 patients with hypertension (44.49% male; mean age 71.41±7.20 years) were included, and 206 cases of IS occurred with a median follow-up of 5.5 years. The results showed that per SD mm Hg increment in PP was associated with a 17% (95% CI 1.05 to 1.40, p=0.0172) increased risk of IS. Moreover, the HR of IS for the highest quartile of PP was 1.46 (95% CI 1.18 to 1.73, p=0.0011, p for trend <0.001) comparing with the lowest quartile of PP. Subgroup analysis showed that population aged ≥70 years, male, patients with smoking or drinking habit, diabetes at baseline, being overweight, with uncontrolled blood pressure or did not take antihypertensive drugs have a higher risk for IS. Conclusions: We found that PP was significantly associated with IS and was an independent risk factor for IS.

Original languageEnglish
Article number137357
Pages (from-to)222-226
Number of pages5
JournalPostgraduate Medical Journal
Volume97
Issue number1146
DOIs
Publication statusPublished - 1 Apr 2021
Externally publishedYes

Keywords

  • hypertension

ASJC Scopus subject areas

  • Medicine(all)

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