| Reliability of skin-type self-assessment: agreement of adolescents' repeated Fitzpatrick skin phototype classification ratings during a cohort study. | |
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MedLine Citation:
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PMID: 22035130 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Background The Fitzpatrick Skin Phototype Classification (FSPC) is the most commonly used measure of skin type. In questionnaire-based surveys, self-rated FSPC is often used as a measure of respondents' skin type. Objective The objective of this analysis was to assess test-retest reliability of the self-rated FSPC within a 12-month cohort study that examined the psychological sequelae of acne. Methods Participants were students aged 14-17 years in four Australian secondary schools; two-government system schools and two private schools. The primary outcomes were a number of psychological measures. The FSPC was assessed by a single concise questionnaire item. Test-retest agreement (as measured by quadratic weighted kappa) of participants' self-rated FSPC at three time-points (baseline, 6 and 12 months) was calculated. Results Of the 244 participating students, 209 students (86%) completed all three rounds of data collection. A further 26 students (11%) completed two rounds. Quadratic weighted kappa for Rounds 1 and 2 was 0.757 (95% CI 0.663-0.831). For Rounds 2 and 3 it was 0.805 (95% CI 0.659-0.893). Between Rounds 1 and 3 it was 0.767 (95% CI 0.698-0.832). This represents good-to-very-good agreement. Skin type was retained as an independent variable in 8 of the16 regression models built to explain psychological outcomes in this study. Conclusion Skin type appears to be a significant factor in psychological morbidity in acne. The FSPC is a reliable method for assessing skin phenotype, even when elicited via a concise questionnaire item suitable for assessing skin type as a potential confounder in studies of other outcome factors. |
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Authors:
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P Magin; D Pond; W Smith; S Goode; N Paterson |
Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-10-31 |
Journal Detail:
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Title: Journal of the European Academy of Dermatology and Venereology : JEADV Volume: - ISSN: 1468-3083 ISO Abbreviation: - Publication Date: 2011 Oct |
Date Detail:
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Created Date: 2011-10-31 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9216037 Medline TA: J Eur Acad Dermatol Venereol Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
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© 2011 The Authors. Journal of the European Academy of Dermatology and Venereology © 2011 European Academy of Dermatology and Venereology. |
Affiliation:
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School of Medicine and Public Health, University of Newcastle, Newcastle, Australia. |
Export Citation:
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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