1 / 21

When evidence challenges opinion

. . Evidence

stevie
Télécharger la présentation

When evidence challenges opinion

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

    2. Evidence & Opinion evidence, n. Ground for belief; testimony or facts tending to prove or disprove any conclusion. opinion, n. What or how one thinks about something; judgment or belief. In my opinion: according to my thinking; as it seems to me. A matter of opinion: a matter about which each may have his or her own opinion; a disputable point. What happens when evidence & opinion are perceived to conflict?

    3. 2 Case Studies Screening mammography for breast cancer Albumin for fluid resuscitation

    4. Screening mammography Australian nationwide program since 1992 Approx 1.25 million women screened each year (70% target) Early detection allows early treatment & better chance of cure

    7. Critique: Methods of primary studies Interpretation by reviewers Personal slander Defence of programs Protection of women

    10. Cochrane Review (updated 2006)

    11. Albumin Plasma protein solution given to patients needing fluids in ICU Large protein molecules encourage fluid to stay in the circulation longer than crystalloids

    14. Responses: Disbelief Denial Personal attacks through letters pages

    16. Evidence & decision-making Evidence is important but one of several drivers in decision-making Clinical practice: Best evidence Experience & judgment Patient values Policy-making: Many stakeholders Hidden drivers of opinion & behaviour

    17. Dealing with Dissonance If its the evidence itself can we improve it? If its other factors can there be more constructive ways than we have witnessed in these examples? Therefore need to acknowledge & clarify source of dissonance

    18. Validity of evidence Should I believe the evidence? Design and quality of primary research Methods and quality of a review Currency of the research Theoretical basis underpinning the research

    19. Applicability & relevance of evidence Is it relevant to me and my jurisdiction? Similarity of patients Similarity of contexts Feasibility of the intervention Important outcomes of the intervention Alternatives

    20. Implications of evidence What are the likely consequences of agreeing with or acting on the evidence? Professional Socio-political Medico-legal Financial

    22. Questions Do I have a problem with this research? Does the problem relate to validity of the research? Does the problem relate to applicability or relevance of the research? Does the problem relate to the implications of the research?

More Related