Letters Preventing falls among older people in hospital

Interpreting the null result

BMJ 2008; 336 doi: https://doi.org/10.1136/bmj.39549.430162.3A (Published 17 April 2008) Cite this as: BMJ 2008;336:847
  1. Frances Healey, patient safety manager
  1. 1School of Health and Social Care, University of Reading, Reading RG1 5AQ
  2. 2National Patient Safety Agency, Leeds LS2 7UE
  1. d.oliver{at}reading.ac.uk

Evidence that multifaceted interventions in acute hospitals are ineffective is limited,1 with most studies based on rehabilitation units2 and only one other large cluster randomised controlled trial in an acute setting.3 This showed a significant reduction in falls after the introduction of multifaceted interventions, as did other large acute hospital studies of before and after design.4 So what explains the disparity in the results? It is …

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