title: Prevalence of use of complementary/alternative medicine: a systematic review.
abstract: Reported are the results of a systematic review of the prevalence of use of complementary/alternative medicine. Computerized literature searches were carried out in four databases. Twelve surveys thus found were selected because they dealt with the utilization of complementary/alternative medicine in random or representative samples of the general population. Data were extracted in a predefined, standardized way. Prevalence of use of complementary/alternative medicine ranged from 9% to 65%. Even for a given form of treatment such as chiropractic, as used in the USA, considerable discrepancies emerged. The data suggest that complementary/alternative therapies are used frequently and increasingly. Prevalence of use seemed to depend critically on factors that were poorly controlled in surveys of complementary/alternative medicine. The true prevalence of use of complementary/alternative medicine in the general population remains uncertain.
authors.affiliation: Department of Complementary Medicine, Postgraduate Medical School, University of Exeter, England. E.Ernst@exeter.ac.uk
authors.forename: E
authors.initials: E
authors.lastname: Ernst
mesh_terms: D000529:Complementary Therapies / Q000706:statistics & numerical data*; D019317:Evidence-Based Medicine; D006801:Humans; D014481:United States