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. What is Known: • Diagnosis of elevated blood pressure (BP) is based on strict probabilistic criteria, the difference between the 90th (pre-hypertension) and 95th (hypertension) percentiles only being 3-4 mmHg. • BP variability could affect BP classification among children and adolescents. What is New: • The magnitude of BP change among children and adolescents is highly affected by BP level and age. • BP does not always drop on consecutive measurements, and evidence-based BP assessment protocols should be established to avoid misdiagnosis of hypertension.
journal_name
Eur J Pediatrjournal_title
European journal of pediatricsauthors
Veloudi P,Blizzard CL,Srikanth VK,Schultz MG,Sharman JEdoi
10.1007/s00431-017-3049-ysubject
Has Abstractpub_date
2018-02-01 00:00:00pages
205-210issue
2eissn
0340-6199issn
1432-1076pii
10.1007/s00431-017-3049-yjournal_volume
177pub_type
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journal_title:European journal of pediatrics
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pub_type: 杂志文章,评审
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journal_title:European journal of pediatrics
pub_type: 临床试验,杂志文章,随机对照试验
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journal_title:European journal of pediatrics
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journal_title:European journal of pediatrics
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