Abstract
BackgroundRecap of atopic eczema (RECAP) is a patient-reported outcome measure (PROM) assessing eczema control. Long-term control of eczema is one of the four core outcome domains for atopic eczema trials. This instrument has been recently developed in the UK.ObjectiveThis study aimed to translate the English RECAP into German and test its content validity in a German population with self-reported atopic eczema.MethodsA six-step procedure including two forward and one backward translations, two consensus decisions and an expert review was performed to obtain a German version of RECAP. We conducted semi-standardized cognitive interviews with adults with atopic eczema (n = 7) and parents having children affected by this disease (n = 5). A “think-aloud” method was used and aspects of comprehensibility, comprehensiveness and relevance according to the COnsensus-based Standards for the selection of health Measurement INstruments (COSMIN) criteria were examined. Interviews were coded using qualitative content analysis.ResultsNo particular linguistic problems were encountered during forward-backward translation. Minor wording changes were made as required. The title was adjusted to a more familiar German term of the disease (which is ‘Neurodermitis’). The recall period was rephrased from ‘over the last week’ to ‘over the last seven days’ since there was a different cultural understanding of the time frame. Regarding content validity, the items of the German RECAP were considered to be comprehensible, comprehensive and relevant for the participants and parents of affected children. The participants understood the instruction and considered the one-week recall period and the response options as appropriate.ConclusionsA German version of RECAP that is linguistically equivalent to the original version is now available but further assessment of its measurement properties is needed.
Highlights
Recap of atopic eczema (RECAP) is a patient-reported outcome measure (PROM) assessing eczema control
No particular linguistic problems were encountered during forward-backward translation
A German version of RECAP that is linguistically equivalent to the original version is available but further assessment of its measurement properties is needed
Summary
Recap of atopic eczema (RECAP) is a patient-reported outcome measure (PROM) assessing eczema control. Long-term control of eczema is one of the four core outcome domains for atopic eczema trials. This instrument has been recently developed in the UK. ‘Longterm control of eczema’ is one of four domains of the COS [12] No instrument measuring this construct in atopic eczema had been available. For this reason, a new outcome measurement instrument, named Recap of atopic eczema (RECAP), was developed and validated [5]. At the HOME VII meeting in Tokyo RECAP and another instrument, the Atopic Dermatitis Control Tool (ADCT) [10, 13], were both voted as core outcome instruments for the long-term domain. A PROM with its items, response options and instructions should be relevant, comprehensive, and comprehensible with respect to the construct of interest and the target population [7]
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