Key result
Vita-Stat ABPR proves less accurate than trained observers, underestimating systolic and overestimating diastolic blood pressure.
Why the study?
The accuracy and repeatability of the Vita-Stat automatic blood pressure recorder for community-based blood pressure measurement were uncertain.
Does the Vita-Stat automatic blood pressure recorder accurately and repeatably measure blood pressure compared to a trained observer using a Random-Zero sphygmomanometer in adult volunteers?
Cross-Sectional (n=518)
Randomly ordered measurements
Does the Vita-Stat automatic blood pressure recorder accurately and repeatably measure blood pressure compared to a trained observer using a Random-Zero sphygmomanometer in adult volunteers?
Mean Difference: -2.4
The Vita-Stat automatic blood pressure recorder is inaccurate and less repeatable than human observers, making it unsatisfactory for community-based self-measurement.
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May warrant avoiding Vita-Stat for community self-measurement; leaves open validation of other automated BP devices.
Salaita et al. (1990) conducted a cross-sectional in Blood pressure measurement (n=518). Vita-Stat automatic blood pressure recorder vs. Trained observer using a Random-Zero sphygmomanometer was evaluated on Difference in average systolic and diastolic blood pressure (MD -2.4 mm Hg (SBP) and +2.3 mm Hg (DBP)). The Vita-Stat automatic blood pressure recorder was less accurate than a trained human observer, underestimating systolic blood pressure (mean difference -2.4 mm Hg) and overestimating diastolic.
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