Introduction to Evidence-Based Medicine

William J. Powers, M.D.--Departments of Neurology, Neurosurgery and Radiology
Washington University School of Medicine -- Presented July 11, 2006

Users' Guides to the Medical Literature: XXV.
Evidence-Based Medicine:
Principles for Applying the Users' Guides to Patient Care.
 
Hierarchy of Clinical Evidence Quality
 

                          N of 1 randomized trial
                         Systematic reviews of randomized trials
                         Single randomized trial
                         Systematic review of observational studies addressing
                              patient-important outcomes
              Single observational study addressing patient-important
                              outcomes
                         Physiologic studies
                         Unsystematic clinical observations
 
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References

Guyatt GH, Haynes RB, Jaeschke RZ, et al.
Users' Guides to the Medical Literature: XXV. Evidence-based medicine: principles for applying the Users' Guides to patient care. Evidence-Based Medicine Working Group.
JAMA 2000 Sep 13;284(10):1290-6.

 

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