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Comput Biol Med. 2013 Aug 1;43(7):900-3. doi: 10.1016/j.compbiomed.2013.04.016. Epub 2013 May 2.

The precision of resting blood pressure measurement.

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Department of Biochemistry, Trinity College, Dublin 2, Ireland.


By analysis of timed series of blood pressure(BP) measurements from a single individual, it was shown that data-averaging did not usually give a true value of resting systolic or diastolic pressure. Such measurements fitted a pattern of first order decay from an initial pressure towards a resting systolic or diastolic pressure, P. Using non-linear regression analysis it was possible to approach a standard error of 1mmHg/1mmHg for P values on a single day; the between-day dispersion, over a period of months, was found to be about 2mmHg/2mmHg. Computer analysis is required to give values of resting systolic and diastolic BP accompanied by error estimates.

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