Association between Systolic and Diastolic Blood Pressure Variability and the Risk of End-Stage Renal Disease

Eun Hui Bae, Sang Yup Lim, Kyung Do Han, Tae Ryom Oh, Hong Sang Choi, Chang Seong Kim, Seong Kwon Ma, Soo Wan Kim

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Recent data suggest that visit-to-visit variability of blood pressure (BP) is associated with cardiovascular events. We evaluated the role of BP variability as a determinant of end-stage renal disease (ESRD). Using nationally representative data from the Korean National Health Insurance System, 8 199 089 subjects had been enrolled during 2009 to 2010 who were free of ESRD and underwent ≥3 health examinations during 2005 to 2010 were followed to the end of 2017. BP variability was measured using the coefficient of variation, SD, and variability independent of the mean. The primary outcome was the development of ESRD, defined as a combination of the relevant disease code and the initiation of renal replacement therapy. The χ2 test, t test, and log-rank test were used in the statistical analysis. There were 16 567 cases of ESRD during a median follow-up of 7.89±0.88 years. The highest quartile of systolic or diastolic BP showed a higher incident rate of ESRD compared with the other 3 quartiles. It was augmented in patients with the highest quartile of both systolic and diastolic BP variabilities. Among patients with the highest quartile of systolic and diastolic BP variabilities, the uncontrolled hypertension group (>140/90 mm Hg) taking antihypertensive medication showed the highest incidence rate of ESRD. These results were consistent when modeling variability of BP using coefficient of variation, SD, and variability independent of the mean and in various sensitivity analyses. Systolic and diastolic BP variabilities were independently associated with an increased incidence of ESRD, and it was augmented when both variabilities were present together.

Original languageEnglish
Pages (from-to)880-887
Number of pages8
JournalHypertension
Volume74
Issue number4
DOIs
Publication statusPublished - 2019 Oct 1

Keywords

  • adult
  • blood pressure
  • hypertension
  • kidney failure, chronic
  • variability

ASJC Scopus subject areas

  • Internal Medicine

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