Key result
Digital BP devices linked to ~89% fewer end-digit zero systolic readings vs mercury devices.
Why the study?
There have been few reports from Africa on the occurrence of end-digit preference in blood pressure measurement by nurses using mercury versus digital devices.
Does a digital blood pressure-measuring device reduce end-digit preference in recorded blood pressure compared to a mercury sphygmomanometer in patients at an HIV/AIDS clinic?
Population
458 patients at HIV/AIDS clinic in Ladoke Akintola University Teaching Hospital, Nigeria
Comparison
Blood pressure measurement using mercury sphygmomanometer vs digital device
Design
Retrospective observational study
Authors
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Digital devices were associated with reduced end-digit preference in BP readings; leaves open whether this improves outcomes before practice change.
Observational (n=458)
No
Does a digital blood pressure-measuring device reduce end-digit preference in recorded blood pressure compared to a mercury sphygmomanometer in patients at an HIV/AIDS clinic?
Absolute Event Rate: 10.9% vs 98.1%
p-value: p=<0.001
The use of digital blood pressure devices significantly reduces end-digit preference compared to mercury sphygmomanometers, improving measurement accuracy.
Ayodele et al. (2013) conducted an observational in HIV/AIDS (n=458). Digital blood pressure-measuring device vs. Mercury sphygmomanometer was evaluated on Prevalence of end-digit zero of systolic blood pressure readings (p=<0.001). The use of a digital blood pressure-measuring device significantly reduced the prevalence of end-digit zero in systolic readings from 98.1% to 10.9% compared to mercury devices (P<0.001).
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