title: Measurement properties of questionnaires assessing complementary and alternative medicine use in pediatrics: a systematic review.
abstract: OBJECTIVE
  Complementary and alternative medicine (CAM) is commonly used by children, but estimates of that use vary widely partly due to the range of questionnaires used to assess CAM use. However, no studies have attempted to appraise measurement properties of these questionnaires. The aim of this systematic review was to critically appraise and summarize measurement properties of questionnaires of CAM use in pediatrics.
  
  
  METHODS
  A search strategy was implemented in major electronic databases in March 2011 and conference websites, scientific journals and experts were consulted. Studies were included if they mentioned a questionnaire assessing the prevalence of CAM use in pediatrics. Members of the team independently rated the methodological quality of the studies (using the COSMIN checklist) and measurement properties of the questionnaires (using the Terwee and Cohen criteria).
  
  
  RESULTS
  A total of 96 CAM questionnaires were found in 104 publications. The COSMIN checklist showed that no studies reported adequate methodological quality. The Terwee criteria showed that all included CAM questionnaires had indeterminate measurement properties. According to the Cohen score, none were considered to be a well-established assessment, two approached the level of a well-established assessment, seven were promising assessments and the remainder (n = 87) did not reach the score's minimum standards.
  
  
  CONCLUSIONS
  None of the identified CAM questionnaires have been thoroughly validated. This systematic review highlights the need for proper validation of CAM questionnaires in pediatrics, which may in turn lead to improved research and knowledge translation about CAM in clinical practice.
authors: Department of Epidemiology and Community Medicine, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada. ktoupina@uottawa.ca
authors: Karine
authors: K
authors: Toupin April
authors: David
authors: D
authors: Moher
authors: Jennifer
authors: J
authors: Stinson
authors: Ani
authors: A
authors: Byrne
authors: Meghan
authors: M
authors: White
authors: Heather
authors: H
authors: Boon
authors: Ciarán M
authors: CM
authors: Duffy
authors: Tamara
authors: T
authors: Rader
authors: Sunita
authors: S
authors: Vohra
authors: Peter
authors: P
authors: Tugwell
mesh_terms: D002648:Child; D000529:Complementary Therapies; D006801:Humans; D010372:Pediatrics; D011795:Surveys and Questionnaires