PPT Slide
Evidence-based medicine and critical appraisal
- EBM provides a systematic approach for the critical appraisal of articles on:
- therapy
- diagnosis
- practice guidelines
- review papers
- economic
- outcome variations
Appraisal of a Randomized Control Trial
I) Are the results valid?
1. Was the assignment of patients to treatments randomized?
2. Were all patients who entered the trial properly accounted for and attributed at its conclusion?
a) was follow-up complete?
b) were patients analyzed in the groups to which they were randomized?
3. Were patients, health workers, and study personnel “blind” to treatment?
4. Were the groups similar at the start of the trial?
5. Aside from the experimental intervention, were the groups treated equally?
II. What are the results?
1. How large was the treatment effect?
2. How precise was the treatment effect?
III Will the results help me in caring for my patients?
1. Can the results be applied to my patient care?
2. Were all clinically important outcomes considered?
3. Are the likely benefits worth the potential harms and costs?