1 / 27

Evidence Based Searching Part 2

Kerry Sullivan, MLIS Health Sciences Librarian March 2011. Evidence Based Searching Part 2. Your hosts Kerry Sullivan Michelle Hajder QUESTIONS? We will have time for Q&A at the end of the session

vita
Download Presentation

Evidence Based Searching Part 2

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Kerry Sullivan, MLIS Health Sciences Librarian March 2011 Evidence Based Searching Part 2

  2. Your hosts • Kerry Sullivan • Michelle Hajder QUESTIONS? • We will have time for Q&A at the end of the session • Expand the Questions window in the GoToWebinar module (usually on the right) and type in your questions for the presenters

  3. GoToWebinar Control Panel 3

  4. The Institute of Medicine (IOM) defines “Evidence-Based Practice" as a combination of the following three factors: (1) best research evidence, (2) best clinical experience, and (3) consistent with patient values • (IOM, 2001; http://www.iom.edu/)

  5. Clinical Question using PICO • P = Patient, Population or Problem • I = Intervention, Prognostic Factor, or Exposure • C = Comparison (if there is one) • O = Outcome

  6. Our clinical question • Do BMI screenings in schools prevent obesity in children?

  7. PICO • P = School age children • I = BMI testing in schools • C = Diet and/or Exercise • O = Obesity prevention

  8. Unfiltered Resources • MEDLINE with Full Text • CINAHL Plus with Full Text • PsycINFO

  9. Types of Questions & Studies

  10. Search Terms & Strategy • Keywords/Subjects • Obesity AND BMI AND schools Limits: children and highest levels of evidence

  11. What is a Systematic Review? • Clearly formulated question • Rigorous criteria for inclusion • Usually clinical trials, but sometimes observational studies • Assessment guidelines • Updated regularly

  12. Benefits of Systematic Reviews Refinement Reduction Efficiency Consistency Reliability Power Precision Quantitative

  13. Meta-Analysis • A particular type of systematic review that focuses on numerical results • Combines results of several independent studies to produce an estimate • Aims to assist in making decisions about a particular therapy

  14. What is a Randomized Controlled Trial? • A scientific experiment used in testing safety and efficacy. • RCTs commonly use a parallel group design or crossover design. • They are the highest level of evidence and are combined to create systematic reviews.

  15. Let’s do some searching for evidence…

  16. Publication Types • MEDLINE • Clinical trials (all) • Controlled Clinical Trial • Meta-Analysis • Randomized Controlled Trial

  17. Publication Types • CINAHL • Clinical Trials • Practice Guidelines • Systematic Review

  18. Methodology • PsycINFO • Systematic Review • Meta-Analysis • Treatment Outcome/Clinical Trial • Qualitative study • Quantitative study

  19. What is a Cohort Study? • Longitudinal study (type of observational) • Analyzes risk factors • Follows groups that share a common characteristic or experience.

  20. Cohort Study

  21. Study Type as Subject Heading • MeSH in Medline • MeSH = Medical Subject Headings • CINAHL Headings • Thesaurus in PsycINFO

  22. MEDLINE – Clinical Queries • Using the Clinical Queries limit • Therapy (treatment or prevention/control) • Diagnosis • Prognosis • Etiology (causation/harm) • Clinical Prediction: risk assessment

  23. 3 Emphasis Categories • Sensitivity • Specificity • Best Balance

  24. CINAHL – Clinical Queries • Clinical Queries • Therapy • Prognosis • Review • Qualitative • Causation • Check limits: Evidence-Based Practice

  25. Questions?

  26. ASK – A – LIBRARIAN library@waldenu.edu 800-930-0914 Thank you!

More Related