title: Development and Evaluation of a Rosacea Screening Instrument (Rosascreen).
abstract: BACKGROUND
  There are no current instruments to facilitate population screening for rosacea.
  
  
  OBJECTIVE
  To develop and evaluate a screening instrument for rosacea applicable for population surveys.
  
  
  METHODS
  A rosacea-specific screening instrument (Rosascreen), consisting of a subject-completed questionnaire and screening algorithm, was developed based on current diagnostic criteria for rosacea. Three iterations were pilot tested and refined for clarity and sensitivity in adult outpatients with and without rosacea.
  
  
  RESULTS
  Three subject groups were consecutively evaluated with iterations of the questionnaire at each centre (overall N = 121). The final version had a sensitivity of 93% to 100% for key diagnostic criteria, and use of the algorithm had a sensitivity of 100% for detection of rosacea and specificity of 63% to 71%. Most subjects found the questionnaire easy to understand and complete.
  
  
  CONCLUSIONS
  Rosascreen, a subject-completed questionnaire and diagnostic algorithm, is a highly sensitive screening instrument that may facilitate estimation of rosacea prevalence in general populations.
authors.affiliation: University of Western Ontario, London, Ontario Windsor Clinical Research Inc, Windsor, Ontario, Canada jerrytan@bellnet.ca.
authors.forename: Jerry
authors.initials: J
authors.lastname: Tan
authors.affiliation: KGL Inc, Broomall, Pennsylvania, USA.
authors.forename: James
authors.initials: J
authors.lastname: Leyden
authors.affiliation: Clinique Dermatologique, Hôpitaux Universitaires, Strasbourg, France.
authors.forename: Bernard
authors.initials: B
authors.lastname: Cribier
authors.affiliation: Galderma R&D SNC, Sophia Antipolis, France.
authors.forename: Fabien
authors.initials: F
authors.lastname: Audibert
authors.affiliation: Galderma R&D SNC, Sophia Antipolis, France.
authors.forename: Nabil
authors.initials: N
authors.lastname: Kerrouche
authors.affiliation: University of Uppsala, Uppsala, Sweden.
authors.forename: Mats
authors.initials: M
authors.lastname: Berg
mesh_terms: D000328:Adult; D000465:Algorithms; D002170:Canada; D015331:Cohort Studies; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010865:Pilot Projects; D012393:Rosacea / Q000150:complications / Q000175:diagnosis* / Q000473:pathology; D012680:Sensitivity and Specificity; D011795:Surveys and Questionnaires; D013548:Sweden
keywords: algorithm; population screening; questionnaire; rosacea
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