Factors associated with intra-individual visit-to-visit variability of blood pressure in four countries: the INTERMAP study.

ABSTRACT: Several studies demonstrated that visit-to-visit variability of blood pressure (BP) predicted future events of total death, stroke and cardiovascular disease. Little is known about factors associated with visit-to-visit BP variability in different countries. We recruited participants aged 40-59 years from four countries (Japan, the People's Republic of China [PRC], the United Kingdom [UK] and the United States [US]). At each study visit, BP was measured twice by trained observers using random zero sphygmomanometers after five minutes resting. We defined visit-to-visit BP variability as variation independent of mean (VIM) by using average systolic BP of 1st and 2nd measurement across four study visits. Data on 4680 men and women were analyzed. Mean ± standard deviation of VIM values among p

SUBMITTER: Takashima N 

PROVIDER: S-EPMC6591717 | biostudies-literature | 2019 Mar

REPOSITORIES: biostudies-literature