PT - JOURNAL ARTICLE AU - J R Geddes AU - D Game AU - N E Jenkins AU - L A Peterson AU - G R Pottinger AU - D L Sackett TI - What proportion of primary psychiatric interventions are based on evidence from randomised controlled trials? AID - 10.1136/qshc.5.4.215 DP - 1996 Dec 01 TA - Quality in Health Care PG - 215--217 VI - 5 IP - 4 4099 - http://qualitysafety.bmj.com/content/5/4/215.short 4100 - http://qualitysafety.bmj.com/content/5/4/215.full SO - Qual Health Care1996 Dec 01; 5 AB - OBJECTIVES: To estimate the proportion of psychiatric inpatients receiving primary interventions based on randomised controlled trials or systematic reviews of randomised controlled trials. DESIGN: Retrospective survey. SETTING: Acute adult general psychiatric ward. SUBJECTS: All patients admitted to the ward during a 28 day period. MAIN OUTCOME MEASURES: 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.