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Blood pressure re-screening for healthy adults: what is the best measure and interval?
MedLine Citation:
PMID:  21814284     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Blood pressure (BP) screening is important to identify those at risk of cardiovascular disease, but there has been little data on the appropriate interval of screening. We aimed to evaluate the optimal interval and the best measure for BP re-screening by estimating the long-term, true change variance ('signal') and short-term, within-person variance ('noise'). Study design was a cohort study from 2005 to 2008. Target population was Japanese healthy adults not taking antihypertensive medication at baseline, in a teaching hospital. We measured annually the systolic BP (SBP) and the diastolic BP (DBP), and calculated the pulse pressure (PP) and the mean arterial pressure (MAP). A total of 15 055 individuals (51% male) with a mean age of 49 years had annual check-ups. Short-term coefficient of variation was lowest for MAP at 5.2%, followed by SBP (5.7%) and DBP (5.8%), and highest for PP (12%). After 3 years, the 'signal' of true BP changes of only SBP and MAP equaled the 'noise' of BP measurement; however, it was larger for those with higher initial BPs. SBP or MAP appears to be a better screening measure. The optimal interval should be 3 years or more, with SBP<130 mm Hg and 2 years for those with SBP130 mm Hg.Journal of Human Hypertension advance online publication, 4 August 2011; doi:10.1038/jhh.2011.72.
Authors:
O Takahashi; P P Glasziou; R Perera; T Shimbo; T Fukui
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-8-04
Journal Detail:
Title:  Journal of human hypertension     Volume:  -     ISSN:  1476-5527     ISO Abbreviation:  -     Publication Date:  2011 Aug 
Date Detail:
Created Date:  2011-8-4     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8811625     Medline TA:  J Hum Hypertens     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
1] Department of Primary Health Care, University of Oxford, Oxford, UK [2] Division of General Internal Medicine, Department of Medicine, St Luke's International Hospital, Tokyo, Japan.
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