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Inter-instrumental variation of skin capacitance measured with the Corneometer®
Department of Dermatology, Bispebjerg Hospital, DK-2400 Copenhagen, Denmark.
Linköping University, Faculty of Health Sciences. Linköping University, Department of Clinical and Experimental Medicine, Dermatology and Venerology . Östergötlands Läns Landsting, Centre for Medicine, Department of Dermatology and Venerology in Östergötland.
2005 (English)In: Skin research and technology, ISSN 0909-752X, Vol. 11, no 2, 107-109 p.Article in journal (Refereed) Published
Abstract [en]

Background/purpose: Measurement of skin surface and stratum corneum (SC) hydration during clinical and/or experimental trials needs devices with acceptable reproducibility and sensitivity under conditions ranging from increased and normal to low hydration. A previous study comparing Corneometer® instruments (European group for Efficacy Measurement of Cosmetics and Other products - EEMCO) used for measurement of electrical capacitance of skin indicated a major difference among Corneometer® instruments. The aim of this study was to assess threee inter-instrumental similar Corneometer® instruments (two pieces of CM820 and one CM810) in normal skin. We named them CM-A(CM820), CM-B(CM820), and CM-C(CM810). Methods: The hydration state of SC measured as electrical capacitance of six body sites were measured in 53 subjects with three Corneometer® instruments. Result: We found that the Corneometer® instruments displayed close capacitance levels. When one Corneometer® was plotted against another the regression line indicated a good correlation among instruments albeit a major and random disagreement could appear in individual sites as an exception. Conclusion: Three Corneometer® instruments evaluated in this study gave close measurements and correlated well. Nevertheless, pretest validation of instruments should be undertaken in multicenter studies where capacitance data are compared or pooled, and concordance among instruments should be documented prior to study. © Blackwell Munksgaard, 2005.

Place, publisher, year, edition, pages
2005. Vol. 11, no 2, 107-109 p.
Keyword [en]
Capacitance, Corneometer®, Inter-instrumental variation, Skin hydration
National Category
Medical and Health Sciences
URN: urn:nbn:se:liu:diva-45460DOI: 10.1111/j.1600-0846.2005.00086.xOAI: diva2:266356
Available from: 2009-10-11 Created: 2009-10-11 Last updated: 2011-01-12

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Serup, Jörgen
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Faculty of Health SciencesDermatology and Venerology Department of Dermatology and Venerology in Östergötland
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