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Why modelling a complex intervention is an important precursor to trial design: lessons from studying an intervention to reduce falls-related injuries in older people.

Authors
  • Eldridge, Sandra
  • Spencer, Anne
  • Cryer, Colin
  • Parsons, Suzanne
  • Underwood, Martin
  • Feder, Gene
Type
Published Article
Journal
Journal of health services research & policy
Publication Date
Jul 01, 2005
Volume
10
Issue
3
Pages
133–142
Identifiers
PMID: 16053589
Source
Medline
License
Unknown

Abstract

The model-building approach described in this paper is vital when designing complex trials and where a trial is not possible. Information from the modelling can be used to re-design the intervention. The effectiveness of our proposed intervention appears very small due to its inability to reach those at risk of falling. It is most likely not to be cost-effective. If inability to reach the target group is a weakness common to other similar interventions, this suggests an area for further research.

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