Reliability of resting blood pressure measurement and classification using an oscillometric device in children with chronic kidney disease

Joseph T. Flynn, Christopher B. Pierce, Edgar R Miller, Jeanne B Charleston, Joshua A. Samuels, Juan Kupferman, Susan L. Furth, Bradley A. Warady

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Abstract

Objective: To compare the reliability of blood pressure (BP) readings obtained with an oscillometric device with those obtained by auscultation and assess for differences in BP status classification based on the 2 techniques. Study design: Resting BP was measured by auscultation and with an oscillometric device at the same encounter in 235 subjects enrolled in the Chronic Kidney Disease in Children study. Resting auscultatory BP values were averaged and compared with averaged oscillometric readings. BP agreement by the 2 methods was assessed using Bland-Altman plots, and BP status classification agreement was assessed by calculation of kappa statistics. Results: Oscillometric BP readings were higher than auscultatory readings, with a median paired difference of 9 mm Hg for systolic BP (SBP) and 6 mm Hg for diastolic BP (DBP). Correlation for mean SBP was 0.624 and for mean DBP was 0.491. The bias for oscillometric BP measurement was 8.7 mm Hg for SBP (P

Original languageEnglish (US)
JournalJournal of Pediatrics
Volume160
Issue number3
DOIs
StatePublished - Mar 2012

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ASJC Scopus subject areas

  • Pediatrics, Perinatology, and Child Health

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