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Occupational Therapy Assistant (OTA): Research

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Evidence Based Practice in OT

"Evidence-based practice is the integration of best research evidence with clinical expertise and patient values to facilitate clinical decidion-making."

- Sackett, D.L. Strauss. S. E. Richardson, W.S. et. al. Evidence-Based Medicine: How to Practice and Teach EBM. London: Churchill-Livingstone, 2000.

While evidence-based clinical practice applied to occupational therapy is relatively new, it is based upon the traditional process of evidence-based medicine (EBM), for which Dr. David Sackett offers one of the best definitions as "the conscientious, explicit and judicious use of current best evidence in making decisions about the care of the individual patient. It means integrating individual expertise with he best available external clinical evidence from systematic research."

Evidence-based practice is thus based on formal examination of evidence from clinical research and requires that the professional develop new skills such as effective searching of the literature and application of formal rules of evidence in evaluating the literature itself.

A. Kaji in The Annals of Emergency Medicine defined EBM as an information gathering skill based on knowledge of information resources, generating a clinical question, and application of best evidence to a patient situation. (Evidence-based medicine. A primer for the emergency medicine resident. Ann Emerg Med. 2002 Jan;39(1):77-80).

Pyramid of Evidence

Pyramid of Evidence

 

 

 

 

 

 

 

 

 

 

The Evidence-Based Medicine Pyramid! Posted on 29th April 2014 by Danny Minkow, https://s4be.cochrane.org/blog/2014/04/29/the-evidence-based-medicine-pyramid/ 

Evidence Based Practice Resources

Levels of Evidence

Level I
Experimental study, randomized controlled trial (RCT)
Systematic review of RCTs, with or without meta-analysis

Level II
Quasi-experimental Study
Systematic review of a combination of RCTs and quasi-experimental, or quasi-experimental studies only, with or without meta-analysis.

Level III
Non-experimental study
Systematic review of a combination of RCTs, quasi-experimental and non-experimental, or non-experimental studies only, with or without meta-analysis.
Qualitative study or systematic review, with or without meta-analysis

Level IV
Opinion of respected authorities and/or nationally recognized expert committees/consensus panels based on scientific evidence.
    Includes:
         - Clinical practice guidelines
         - Consensus panels

Level V
Based on experiential and non-research evidence.
    Includes:
      - Literature reviews
      - Quality improvement, program or financial evaluation
      - Case reports
      - Opinion of nationally recognized expert(s) based on experiential evidence

From Johns Hopkins nursing evidence-based practice : Models and Guidelines

Dang, D., & Dearholt, S.L. (2018). Johns Hopkins nursing evidence-based practice : Model & guidelines (3rd ed). Sigma Theta Tau International.

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