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


Veloudi, P and Blizzard, CL and Srikanth, VK and Schultz, MG and Sharman, JE, Influence of blood pressure level and age on within-visit blood pressure variability in children and adolescents, European Journal of Pediatrics, 177, (2) pp. 205-210. ISSN 0340-6199 (2018) [Refereed Article]

Copyright Statement

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

DOI: doi:10.1007/s00431-017-3049-y


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 Details

Item Type:Refereed Article
Keywords:alarm reaction, blood pressure classification, clinic blood pressure, hypertension guidelines, pediatric hypertension
Research Division:Biomedical and Clinical Sciences
Research Group:Cardiovascular medicine and haematology
Research Field:Cardiology (incl. cardiovascular diseases)
Objective Division:Health
Objective Group:Clinical health
Objective Field:Clinical health not elsewhere classified
UTAS Author:Veloudi, P (Mrs Penny Veloudi)
UTAS Author:Blizzard, CL (Professor Leigh Blizzard)
UTAS Author:Srikanth, VK (Dr Velandai Srikanth)
UTAS Author:Schultz, MG (Dr Martin Schultz)
UTAS Author:Sharman, JE (Professor James Sharman)
ID Code:125479
Year Published:2018
Web of Science® Times Cited:7
Deposited By:Menzies Institute for Medical Research
Deposited On:2018-04-19
Last Modified:2019-02-18

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