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Influence of blood pressure level and age on within-visit blood pressure variability in children and adolescents

Veloudi, P ORCID: 0000-0001-6707-7836, Blizzard, CL ORCID: 0000-0002-9541-6943, Srikanth, VK, Schultz, MG ORCID: 0000-0003-3458-1811 and Sharman, JE ORCID: 0000-0003-2792-0811 2018 , 'Influence of blood pressure level and age on within-visit blood pressure variability in children and adolescents' , European Journal of Pediatrics, vol. 177, no. 2 , pp. 205-210 , doi: 10.1007/s00431-017-3049-y.

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Abstract

Blood pressure (BP) is variable in children and this could affect BP assessment, but the magnitude of within-visit BP variability (BPV) over consecutive measurements has never been investigated. This study aimed to determine the direction and magnitude of, and factors affecting, within-visit BPV in children and adolescents. BP was recorded among 3047 children (aged 12 years [95%CI 12, 13], males 52%) from the 2011-2013 Australian Health Survey. BPV was defined as the absolute difference (∆SBPABS) between the first (SBP1) and second systolic BP (SBP2) and the overall variability in three measures when available (SBPV). On average, ∆SBPABS was 6.7 mmHg (95%CI 6.3, 7.0) and SBPV was 8.2% (95%CI 7.8, 8.6). ∆SBPABS was greater with higher BP levels but lower with older age. From first to second measurements, SBP decreased in 58% (95%CI 56, 60), did not change in 10% (95%CI 9, 12), and increased in 32% (95%CI 29, 34) of the population.Conclusions: BP is highly variable in children and adolescents, with the magnitude of variability being associated with both age and BP level. SBP increases on repeat measurement in a substantial proportion of the population. The optimal protocol of BP assessment to address this increased BPV needs to be determined.

Item Type: Article
Authors/Creators:Veloudi, P and Blizzard, CL and Srikanth, VK and Schultz, MG and Sharman, JE
Keywords: alarm reaction, blood pressure classification, clinic blood pressure, hypertension guidelines, pediatric hypertension
Journal or Publication Title: European Journal of Pediatrics
Publisher: Springer-Verlag
ISSN: 0340-6199
DOI / ID Number: 10.1007/s00431-017-3049-y
Copyright Information:

Copyright 2017 Springer-Verlag GmbH Germany, part of Springer Nature

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