Measuring blood pressure in pregnancy and postpartum: Assessing the reliability of automated measuring devices

Patrick G. Lan, Philip A. Clayton, Jon Hyett, Adrian G. Gillin

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


Objective: To determine the reliability of automated blood pressure (BP) measuring devices in hypertensive pregnancies. Methods: Three sequential measurements were taken using mercury sphygmomanometry and an automated device in pregnant hypertensive women (n=89). Results: Systolic BP (SBP) was higher with the automated device (mean difference 2.5mmHg, 95% CI: 1.9-3.2mmHg), whereas diastolic BP (DBP) was higher with the mercury sphygmomanometer (mean difference 2.0mmHg, 95% CI: 1.5-2.6mmHg). Within-patient variability for the automated device was: SBP 4.8mmHg (95% CI: 4.6-5.2mmHg), DBP 3.4mmHg (95% CI: 3.1-3.7mmHg); and for mercury sphygmomanometry: SBP 3.7mmHg (95% CI: 3.5-4.0mmHg), DBP 3.0mmHg (95% CI: 2.8-3.3mmHg). Conclusion: Outpatient automated BP measurement agrees well with mercury sphygmomanometry in hypertensive pregnancies.

Original languageEnglish
Pages (from-to)168-176
Number of pages9
JournalHypertension in Pregnancy
Issue number2
Publication statusPublished or Issued - May 2014
Externally publishedYes


  • Automated devices
  • Mercury sphygmomanometer

ASJC Scopus subject areas

  • Internal Medicine
  • Obstetrics and Gynaecology

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