Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/36437
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Type: Journal article
Title: Statistics and graphs for heart rate variability: pNN50 or pNN20?
Author: Hutchinson, T.
Citation: Physiological Measurement, 2003; 24(3):N9-N14
Publisher: IOP Publishing Ltd
Issue Date: 2003
ISSN: 0967-3334
1361-6579
Statement of
Responsibility: 
T.P. Hutchinson
Abstract: Two measures of heart rate variability, pNN50 and pNN20, are compared. A non-linear transformation of these measures is proposed, that is helpful in understanding their interrelationship. Provided a valid statistical test is employed, results from analysing pNN20 are likely to be equivalent to those from analysing pNN50. Arguments recently made by Mietus et al (2002 Heart88 378-80) against the commonly used pNN50 are unconvincing.
Keywords: Parasympathetic Nervous System; Humans; Data Interpretation, Statistical; Heart Rate; Nonlinear Dynamics; Models, Cardiovascular; Models, Neurological
Description: © Institute of Physics Publishing
RMID: 0020065367
DOI: 10.1088/0967-3334/24/3/401
Appears in Collections:Centre for Automotive Safety Research publications

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