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Systematic reviews
What is a systematic review? ,[object Object]
Systematic Review ,[object Object],[object Object]
Cook, D. J. et. al. Ann Intern Med 1997;126:376-380 Differences between Narrative Reviews and Systematic Reviews
QUESTION Broad Focused SOURCES/ Usually unspecified Comprehensive;    SEARCH    Possibly biased  explicit SELECTION   Unspecified; biased?Criterion-based; uniformly applied APPRAISAL Variable Rigourous SYNTHESIS Usually qualitative Quantitative INFERENCE  Sometimes  Usually evidence-   evidence-based based NARRATIVE SYSTEMATIC Cook, D. J. et. al. Ann Intern Med 1997;126:376-380
Level of evidence ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
 
Why on the Top ,[object Object],[object Object],[object Object],[object Object]
Why do we need it ,[object Object],[object Object],[object Object],[object Object]
So , we need a study of studies ,[object Object],[object Object],[object Object]
Example ,[object Object],[object Object],[object Object],[object Object],[object Object]
Why do we need it ,[object Object],[object Object],[object Object]
Graphic Display: ß blockers in secondary prevention after myocardial infarction .
Why do we need it ,[object Object]
Why do we need it  Example ,[object Object],[object Object]
Cumulative Meta-analysis
Why do we need it ,[object Object]
 
Cochrane Library ,[object Object],[object Object],[object Object],[object Object]
Abstract Background Objectives Criteria for considering studies for this review Types of participants Types of intervention Types of outcome measures Types of studies Search strategy for identification of studies Methods of the review Description of the studies Methodological qualities of included studies Results Discussion Conclusions Implications for practice Implications for research Internal sources of support to the review External sources of support to the review Potential conflict of interest Acknowledgements Contribution of Reviewer(s) Synopsis Characteristics of included studies Table 01 results References to studies included in this review Additional references   Typical Systematic Review “Skeleton”
Steps to do   ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Methodology ,[object Object],[object Object],[object Object],[object Object],[object Object]
Some Controversies About Meta-Analysis ,[object Object],[object Object],[object Object]
Retrospective ,[object Object],[object Object]
Repeat the analysis ,[object Object],[object Object],[object Object]
Meta-analysis vs. a “Mega-study” ,[object Object],[object Object],[object Object],[object Object],[object Object]
Publication Bias
Human Albumin Model ,[object Object]
Search strategy ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
[object Object],[object Object]
R.R
NNT ,[object Object],[object Object],[object Object],[object Object]
Caution ,[object Object]
Keep in mind Evidence may change with more trials
challenges for systematic reviews ,[object Object],[object Object]
Developing Countries ,[object Object],[object Object],[object Object]
Problems in Contribution ,[object Object],[object Object],[object Object],[object Object]
Major problem ,[object Object]
Solutions:  I ,[object Object],[object Object]
Solutions:  II ,[object Object],[object Object],[object Object]
Useful websites ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Thank You

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Systematic review

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  • 4. Cook, D. J. et. al. Ann Intern Med 1997;126:376-380 Differences between Narrative Reviews and Systematic Reviews
  • 5. QUESTION Broad Focused SOURCES/ Usually unspecified Comprehensive; SEARCH Possibly biased explicit SELECTION Unspecified; biased?Criterion-based; uniformly applied APPRAISAL Variable Rigourous SYNTHESIS Usually qualitative Quantitative INFERENCE Sometimes Usually evidence- evidence-based based NARRATIVE SYSTEMATIC Cook, D. J. et. al. Ann Intern Med 1997;126:376-380
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  • 13. Graphic Display: ß blockers in secondary prevention after myocardial infarction .
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  • 20. Abstract Background Objectives Criteria for considering studies for this review Types of participants Types of intervention Types of outcome measures Types of studies Search strategy for identification of studies Methods of the review Description of the studies Methodological qualities of included studies Results Discussion Conclusions Implications for practice Implications for research Internal sources of support to the review External sources of support to the review Potential conflict of interest Acknowledgements Contribution of Reviewer(s) Synopsis Characteristics of included studies Table 01 results References to studies included in this review Additional references Typical Systematic Review “Skeleton”
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  • 31. R.R
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  • 34. Keep in mind Evidence may change with more trials
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Editor's Notes

  1. Just read the slide – and try to elicit answers.
  2. The lag period between publication of research findings demonstrating clinical effectiveness and the subsequent implementation in clinical practice is well recognized. Practitioners continue to base clinical decisions on outdated training and on experience with individual patients.