Standardizing Outcome Measurement in Dermatology: The C3 Manual and Checklist for the Development of Core Outcome Sets

Inconsistent outcome selection and measurement remain major barriers to evidence synthesis in dermatology. We introduce the C3 Manual and Checklist, developed through an international collaborative process, which consolidate existing methodological guidance into a structured, practical framework to support the development and implementation of core outcome sets. By improving standardization and providing methodological support, C3 aims to enhance comparability across studies and strengthen dermatological research.

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Publication Details

Journal
British Journal of Dermatology
Published
2026-07-16
DOI
https://doi.org/10.1093/bjd/ljag281
Primary Topic
Delphi Technique in Research
Type
article
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article

Standardizing Outcome Measurement in Dermatology: The C3 Manual and Checklist for the Development of Core Outcome Sets

Kim S Thomas, Viktoria Eleftheriadou, John R Ingram, Amit Garg et al.
British Journal of Dermatology
Delphi Technique in Research
article

Standardizing Outcome Measurement in Dermatology: The C3 Manual and Checklist for the Development of Core Outcome Sets

Kim S Thomas, Viktoria Eleftheriadou, John R Ingram, Amit Garg, Jan Kottner, Phyllis I. Spuls, Cecilia A C Prinsen, Linea Thorlacius, Khaled Ezzedine, Murad Alam, Jamie J Kirkham, Daniel Munblit
article en

Abstract

Inconsistent outcome selection and measurement remain major barriers to evidence synthesis in dermatology. We introduce the C3 Manual and Checklist, developed through an international collaborative process, which consolidate existing methodological guidance into a structured, practical framework to support the development and implementation of core outcome sets. By improving standardization and providing methodological support, C3 aims to enhance comparability across studies and strengthen dermatological research.

British Journal of Dermatology
Northwestern University (US), Northwell Health (US), University of Nottingham (GB), Inserm (FR), Sechenov University (RU), Université Paris-Est Créteil (FR), Manchester Academic Health Science Centre (GB), New Cross Hospital (GB), Florence Nightingale Foundation (GB), Frederiksberg Hospital (DK), Zealand University Hospital (DK), Northwestern University (PH), Amsterdam Neuroscience (NL), Berlin Institute of Health at Charité - Universitätsmedizin Berlin (DE), Northwestern Medicine (US), Walsall Healthcare NHS Trust (GB), Institute of Infection and Immunity (CA), Keele University (GB), Charité - Universitätsmedizin Berlin (DE), Cardiff University (GB), University of Amsterdam (NL)
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Openalex Percentile: Top 3%
Delphi Technique in Research
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