Document Detail


Reliability of skin-type self-assessment: agreement of adolescents' repeated Fitzpatrick skin phototype classification ratings during a cohort study.
MedLine Citation:
PMID:  22035130     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
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.
Authors:
P Magin; D Pond; W Smith; S Goode; N Paterson
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-10-31
Journal Detail:
Title:  Journal of the European Academy of Dermatology and Venereology : JEADV     Volume:  -     ISSN:  1468-3083     ISO Abbreviation:  -     Publication Date:  2011 Oct 
Date Detail:
Created Date:  2011-10-31     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9216037     Medline TA:  J Eur Acad Dermatol Venereol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
© 2011 The Authors. Journal of the European Academy of Dermatology and Venereology © 2011 European Academy of Dermatology and Venereology.
Affiliation:
School of Medicine and Public Health, University of Newcastle, Newcastle, Australia.
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