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Factor structure and convergent validity of the...
Journal article

Factor structure and convergent validity of the Derriford Appearance Scale-24 using standard scoring versus treating ‘not applicable’ responses as missing data: a Scleroderma Patient-centered Intervention Network (SPIN) cohort study

Abstract

ObjectiveValid measures of appearance concern are needed in systemic sclerosis (SSc), a rare, disfiguring autoimmune disease. The Derriford Appearance Scale-24 (DAS-24) assesses appearance-related distress related to visible differences. There is uncertainty regarding its factor structure, possibly due to its scoring method.DesignCross-sectional survey.SettingParticipants with SSc were recruited from 27 centres in Canada, the USA and the UK. …

Authors

Merz EL; Kwakkenbos L; Carrier M-E; Gholizadeh S; Mills SD; Fox RS; Jewett LR; Williamson H; Harcourt D; Assassi S

Journal

BMJ Open, Vol. 8, No. 3, pp. e018641–e018641

Publisher

BMJ

Publication Date

March 2018

DOI

10.1136/bmjopen-2017-018641

ISSN

2044-6055

Associated Experts

Margaret Larche

Professor (Part-Time), Faculty of Health Sciences
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Labels

Fields of Research (FoR)

4203 Health Services and Systems42 Health sciences32 Biomedical and clinical sciences52 Psychology

Medical Subject Headings (MeSH)

AdolescentAdultAgedAged, 80 and overBody ImageCanadaCohort StudiesCross-Sectional StudiesFemaleHumansMaleMiddle AgedPhysical Appearance, BodyPsychometricsReproducibility of ResultsResearch DesignScleroderma, SystemicStress, PsychologicalSurveys and QuestionnairesUnited KingdomUnited StatesYoung Adult
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