title: What proportion of primary psychiatric interventions are based on evidence from randomised controlled trials?
abstract: OBJECTIVE
  To estimate the proportion of psychiatric inpatients receiving primary interventions based on randomised controlled trials or systematic reviews of randomised controlled trials.
  
  
  METHODS
  Retrospective survey.
  
  
  METHODS
  Acute adult general psychiatric ward.
  
  
  METHODS
  All patients admitted to the ward during a 28 day period.
  
  
  METHODS
  Primary interventions were classified according to whether or not they were supported by evidence from randomised controlled trials or systematic reviews.
  
  
  RESULTS
  The primary interventions received by 26/40 (65%; 95% confidence interval (95% CI) 51% to 79%) of patients admitted during the period were based on randomised trials or systematic reviews.
  
  
  CONCLUSIONS
  When patients were used as the denominator, most primary interventions given in acute general psychiatry were based on experimental evidence. The evidence was difficult to locate; there is an urgent need for systematic reviews of randomised controlled trials in this area.
authors.affiliation: University Department of Psychiatry, Warneford Hospital, Oxford, UK.
authors.forename: J R
authors.initials: JR
authors.lastname: Geddes
authors.forename: D
authors.initials: D
authors.lastname: Game
authors.forename: N E
authors.initials: NE
authors.lastname: Jenkins
authors.forename: L A
authors.initials: LA
authors.lastname: Peterson
authors.forename: G R
authors.initials: GR
authors.lastname: Pottinger
authors.forename: D L
authors.initials: DL
authors.lastname: Sackett
mesh_terms: D000328:Adult; D019317:Evidence-Based Medicine / Q000706:statistics & numerical data*; D006779:Hospitals, Public; D006801:Humans; D007297:Inpatients; D001523:Mental Disorders / Q000628:therapy*; D017410:Practice Guidelines as Topic; D011322:Primary Prevention; D011567:Psychiatric Department, Hospital / Q000706:statistics & numerical data*; D016032:Randomized Controlled Trials as Topic; D012189:Retrospective Studies; D013222:State Medicine