Monitoring blood pressure at

Accuracy of home blood pressure monitors

Accuracy of patient-owned blood pressure monitors compared to Omron PA350 monitor checker



Study hypothesis

Primary aim:
To determine how accurate are home digital upper arm and wrist blood pressure monitors.

Secondary aims:
1. To find out which digital blood pressure monitors are currently used by patients
2. How well they perform;
3. Is there any evidence of decreasing accuracy over time, or with greater usage, or by validation status, or cost (recommended retail price) of device

Ethics approval


Study design

Non-randomised diagnostic accuracy study

Primary study design


Secondary study design

Non randomised study

Trial setting


Trial type


Patient information sheet

Not available in web format, please use the contact details below to request a patient information sheet


Topic: Primary Care; Subtopic: Primary Care; Disease: All Diseases


Eligible patients are sent a letter asking if they are interested in having their monitor tested for accuracy. Those who respond (by telephone or post) will be asked to drop off their monitor to the practice on a prearranged day. Monitors will be tested and returned to participants with results within 2 weeks.

The procedure will be to test patients’ blood pressure (BP) monitors using the OMRON PA350 digital BP tester. Monitors will be inflated following a standard process as recommended by each monitor manufacturer and the British Hypertension Society, with a pass rate of +/- 3mmHg or less from the PA350 reading.

How to Monitor and Record Your Blood Pressure
How to Monitor and Record Your Blood Pressure
Blood Pressure Monitors - QS Health
Blood Pressure Monitors - QS Health
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