Downloaded 96 times
Uploaded byRobin Featherstone
Searching EBM Resources
The document provides an overview of searching for resources in evidence-based medicine. It describes the evidence-based medicine process, how to formulate clinical questions using PICO, and how to locate the best available medical evidence. It discusses formulating clinical questions, levels of evidence for therapy questions, information sources like systematic reviews and randomized controlled trials, and criteria for selecting sources. The objectives are to describe the evidence-based medicine process, formulate questions using PICO, and locate the best medical evidence.
More Related Content
Similar to Searching EBM Resources
Searching EBM Resources
- 1. Life Sciences Library Searching Resources in Evidence- Based Medicine Robin Featherstone, MLIS Liaison Librarian (Medicine) robin.featherstone@mcgill.ca Winter 2012
- 2. Objectives By the endof this lecture, you will be able to: 1. Describe the Evidence-Based Medicine (EBM) process 2. Formulate clinical questions using PICO 3. Locate best available medical evidence 2
- 3. Evidence-Based Medicine: TheProcess Formulating Evaluating the clinical the Process question Your patient for whom you are uncertain about therapy, diagnosis, or Searching Incorporating prognosis the evidence into Evidence decision- making Appraising the Evidence LINK 3
- 4. Patient Scenario Formulate a Clinical Question Patient, Population, or Problem Intervention Comparison Outcomes
- 5. Patient Scenario Clinical Scenario You have been asked to review the practice guidelines for treating warts. You are confident that cryotherapy is the most effective treatment but a colleague suggested some alternatives to investigate, including duct tape. Could duct tape be used for eliminating warts? Does the literature provide evidence to support this treatment?
- 6. Patient Scenario Clinical Question PICO In patients with common warts, is duct tape as effective as cryotherapy in eliminating warts?
- 7. What is theEvidence? Systematic Reviews Case-control studies Randomized control trials Cohort studies Case reports Editorials Animal research All types of articles found in MEDLINE
- 8. Question Best Evidence Cost-effectiveness •Economic analyses Diagnosis •Diagnostic validation studies •Prospective studies / blind comparison to a gold standard Etiology •Randomized controlled trials •Case-control or cohort studies •Case series Prevention •Randomized controlled trials •Cohort studies, case control studies •Systematic reviews / meta-analyses Prognosis •Inception cohort studies •Case control studies •Case series Quality of life •Qualitative studies Therapy •Randomized controlled trials •Systematic reviews / meta-analyses 1 Heneghan, Carl, and Douglas Badenoch. Evidence-Based Medicine Toolkit. 2nd ed. Malden, Mass.: BMJ Books/Blackwell Pub., 2006. 2 Glover, Jan, and Lei Wang. Find it Fast: The Clinical Question : www.med.yale.edu/library/education/guides/screencasts/finditfast/finditfast_2/
- 9. Levels of Evidence for Therapy Question Level of Evidence Type of Study 1a Systematic reviews of randomized controlled trials (RCTs) 1b Individual RCTs with narrow confidence interval 2a Systematic reviews of cohort studies 2b Individual cohort studies and low-quality RCTs 3a Systematic reviews of case-control studies 3b Case-control studies 4 Case series and poor quality cohort and case-control studies 5 Expert opinion Levels of evidence (2001). Centre for Evidence Based Medicine. Retrieved 26 Aug 2008 from http://www.cebm.net/index.aspx?o=1025 9
- 10. Information Sources for Therapy Question Synopsis of synthesis Summaries Filtered 1b 1a 1b 1a 2b 2a 2b 2a Unfiltered 3b 3b 4 5 4 5
- 11. Criteria for Selectingan Information Source 1. Soundness of evidence-based approach 2. Comprehensiveness and specificity 3. Ease of use 4. Availability
- 12. Information Sources for Therapy Question Filtered
- 13. Information Sources for Therapy Question Filtered
- 14. Information Sources for Therapy Question Filtered
- 15. Information Sources for Therapy Question Filtered
- 16. Information Sources for Therapy Question Filtered
- 17. Information Sources for Therapy Question Filtered Unfiltered
- 18. Information Sources for Therapy Question Unfiltered
- 19.
- 20.
- 21. Summary Quiz 1. UpToDateis a _______ resource. And Medline is a ________ resource. 2. The 5 stages in the EBM process are _______. 3. The best evidence to answer a therapy question is _______. 4. To find systematic reviews of RCTs use _______. 5. To evaluate a clinical topic page, look for _______. LINK
- 22. Life Sciences Library Questions Robin Featherstone, MLIS Liaison Librarian (Medicine) robin.featherstone@mcgill.ca Winter 2012