A novel metric of reliability in pressure pain threshold measurement

Abstract The inter-session Intraclass Correlation Coefficient (ICC) is a commonly investigated and clinically important metric of reliability for pressure pain threshold (PPT) measurement. However, current investigations do not account for inter-repetition variability when calculating inter-session...

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Autores principales:	Bernard Liew, Ho Yin Lee, David Rügamer, Alessandro Marco De Nunzio, Nicola R. Heneghan, Deborah Falla, David W. Evans
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/7b1a28fc92564bd0a683886649398aed
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spelling	oai:doaj.org-article:7b1a28fc92564bd0a683886649398aed2021-12-02T17:04:34ZA novel metric of reliability in pressure pain threshold measurement10.1038/s41598-021-86344-62045-2322https://doaj.org/article/7b1a28fc92564bd0a683886649398aed2021-03-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-86344-6https://doaj.org/toc/2045-2322Abstract The inter-session Intraclass Correlation Coefficient (ICC) is a commonly investigated and clinically important metric of reliability for pressure pain threshold (PPT) measurement. However, current investigations do not account for inter-repetition variability when calculating inter-session ICC, even though a PPT measurement taken at different sessions must also imply different repetitions. The primary aim was to evaluate and report a novel metric of reliability in PPT measurement: the inter-session-repetition ICC. One rater recorded ten repetitions of PPT measurement over the lumbar region bilaterally at two sessions in twenty healthy adults using a pressure algometer. Variance components were computed using linear mixed-models and used to construct ICCs; most notably inter-session ICC and inter-session-repetition ICC. At 70.1% of the total variance, the source of greatest variability was between subjects ( $${\sigma }_{subj}^{2}$$ σ subj 2 = 222.28 N2), whereas the source of least variability (1.5% total variance) was between sessions ( $${\sigma }_{sess}^{2}$$ σ sess 2 = 4.83 N2). Derived inter-session and inter-session-repetition ICCs were 0.88 (95%CI: 0.77 to 0.94) and 0.73 (95%CI: 0.53 to 0.84) respectively. Inter-session-repetition ICC provides a more conservative estimate of reliability than inter-session ICC, with the magnitude of difference being clinically meaningful. Quantifying individual sources of variability enables ICC construction to be reflective of individual testing protocols.Bernard LiewHo Yin LeeDavid RügamerAlessandro Marco De NunzioNicola R. HeneghanDeborah FallaDavid W. EvansNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-8 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Bernard Liew Ho Yin Lee David Rügamer Alessandro Marco De Nunzio Nicola R. Heneghan Deborah Falla David W. Evans A novel metric of reliability in pressure pain threshold measurement
description	Abstract The inter-session Intraclass Correlation Coefficient (ICC) is a commonly investigated and clinically important metric of reliability for pressure pain threshold (PPT) measurement. However, current investigations do not account for inter-repetition variability when calculating inter-session ICC, even though a PPT measurement taken at different sessions must also imply different repetitions. The primary aim was to evaluate and report a novel metric of reliability in PPT measurement: the inter-session-repetition ICC. One rater recorded ten repetitions of PPT measurement over the lumbar region bilaterally at two sessions in twenty healthy adults using a pressure algometer. Variance components were computed using linear mixed-models and used to construct ICCs; most notably inter-session ICC and inter-session-repetition ICC. At 70.1% of the total variance, the source of greatest variability was between subjects ( $${\sigma }_{subj}^{2}$$ σ subj 2 = 222.28 N2), whereas the source of least variability (1.5% total variance) was between sessions ( $${\sigma }_{sess}^{2}$$ σ sess 2 = 4.83 N2). Derived inter-session and inter-session-repetition ICCs were 0.88 (95%CI: 0.77 to 0.94) and 0.73 (95%CI: 0.53 to 0.84) respectively. Inter-session-repetition ICC provides a more conservative estimate of reliability than inter-session ICC, with the magnitude of difference being clinically meaningful. Quantifying individual sources of variability enables ICC construction to be reflective of individual testing protocols.
format	article
author	Bernard Liew Ho Yin Lee David Rügamer Alessandro Marco De Nunzio Nicola R. Heneghan Deborah Falla David W. Evans
author_facet	Bernard Liew Ho Yin Lee David Rügamer Alessandro Marco De Nunzio Nicola R. Heneghan Deborah Falla David W. Evans
author_sort	Bernard Liew
title	A novel metric of reliability in pressure pain threshold measurement
title_short	A novel metric of reliability in pressure pain threshold measurement
title_full	A novel metric of reliability in pressure pain threshold measurement
title_fullStr	A novel metric of reliability in pressure pain threshold measurement
title_full_unstemmed	A novel metric of reliability in pressure pain threshold measurement
title_sort	novel metric of reliability in pressure pain threshold measurement
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/7b1a28fc92564bd0a683886649398aed
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A novel metric of reliability in pressure pain threshold measurement

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