title: Placebo interventions in practice: a questionnaire survey on the attitudes of patients and physicians.
abstract: BACKGROUND
  Few studies have investigated whether patients and physicians differ in their attitudes regarding placebo interventions in medical practice.
  
  
  OBJECTIVE
  To compare the proportions of patients and physicians who would accept therapies that do not work through specific pharmacological or physiological action but by enhancing self-healing capacities and by exploiting contextual factors.
  
  
  METHODS
  Survey of a random sample of GPs and patients consecutively attending in primary care practices.
  
  
  METHODS
  Four hundred and seventy-seven patients and 300 GPs from primary care practices of the Canton Zurich of Switzerland were approached.
  
  
  METHODS
  Two questionnaires on responders' attitudes regarding non-specific therapies.
  
  
  RESULTS
  The response rates were 87% for patients and 79% for GPs. Eighty-seven per cent of patients and 97% of GPs thought that physical complaints can get better by believing in the effectiveness of the therapy. Overall there was more support for placebo interventions among patients than among GPs, yet 90% of the physicians admitted to actively proposing treatments intended to take advantage of non-specific effects. Seventy per cent of the patients wanted to be explicitly informed when receiving a non-specific intervention, whereas physicians thought this was the case for only 33% of their patients. Fifty-four per cent of patients would be disappointed when learning they had unknowingly been treated with pure placebo ('sugar pill'), while only 44% would feel that way after treatment with impure placebo (for example, herbal medicine).
  
  
  CONCLUSIONS
  GPs rather underestimate the openness of their patients to non-specific therapies. However, patients want to be appropriately informed. Developing specific professional standards could help physicians to harness the 'power of the placebo', while remaining authentic and credible.
authors.affiliation: Institute of Biomedical Ethics, University of Zurich, Zurich, Switzerland.
authors.forename: Margrit
authors.initials: M
authors.lastname: Fässler
authors.forename: Markus
authors.initials: M
authors.lastname: Gnädinger
authors.forename: Thomas
authors.initials: T
authors.lastname: Rosemann
authors.forename: Nikola
authors.initials: N
authors.lastname: Biller-Andorno
mesh_terms: D001291:Attitude of Health Personnel; D001294:Attitude to Health; D004812:Epidemiologic Methods; D005194:Family Practice; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D017060:Patient Satisfaction; D010817:Physician-Patient Relations; D010919:Placebos / Q000627:therapeutic use*; D010818:Practice Patterns, Physicians'; D013557:Switzerland / Q000453:epidemiology
chemical_list: D010919:Placebos