What is a Systematic Review? - Pubrica

WHAT IS A SYSTEMATIC REVIEW

An Academic presentation by Dr. Nancy Agens, Head, Technical Operations, Pubrica Group: www.pubrica.com Email: sales@pubrica.com

Today's Discussion Outlin e

In brief Introduction What makes an Excellent Systematic Review Different types of Reviews Differences between Systematic and Literature Reviews Conclusion

In Brief A systematic review is a secondary research as it requires a careful analysis of the quality, quantity, and consistency of research findings. Sy stematic reviews formulate research questions that are specifically targeted and designed to provide a complete summary of the issue based on evidence. The methodology used in systematic reviews is specific and precise, which intends to minimize bias by increasing the reliability of the drawn conclusion.

Introductio n A systematic review is a process of identifying comprehensive studies for a research specific question through evaluating the methods of the study, summarizing the results, presenting key findings and identifying reasons for produced results across the study.

In a systematic review, the compiled information tends to be explicit and more transparent using reproducible methods.

The produced results of a systematic review can be summarized either in text or graphic form, and it depends upon the nature of the primary data.

The PRISMA, provides a set of regulations on how to report a systematic review.

What makes an Excellent Systematic Review?

A good systematic review will include, A focused question Inclusion/exclusion criteria Search strategy Study selection Assess the quality of studies Synthesize study results Analysis and limitations

Contd ..

1. FOCUSED QUESTION a systematic review is a research method used to address a specific research question and formulating a well-constructed research question is essential for a successful review.

2. INCLUSION/EXCLUSION CRITERIA It studies the writers included or excluded and the reason.

3. SEARCH STRATEGY The reviewer must explain the methods used for finding relevant studies which include published and unpublished clinical trial reports, online database search, as well as approaching experts in finding unpublished data.

Contd..

4. STUDY SELECTION Need to identify suitable study criteria and collect relevant data for conducting a systematic review.

5. ASSESS THE QUALITY OF STUDIES It helps in identifying the risk of bias in secondary research.

6. SYNTHESIZE STUDY RESULTS Upon similarity on the included data, the author must determine the effectiveness of an intervention using meta-analysis.

7. ANALYSIS AND LIMITATIONS The review should discuss the addressed area of study, the findings, and how the review results change the existing limitations.

Different types of Reviews: There are many types of reviews addressing questions of effectiveness, questions about the prevalence of diagnostic accuracy, and prognosis. Different types of reviews include, Literature Review Meta-analysis Rapid review Scoping review S ystematic review Systematized review Umbrella review

Differences between Systematic and Literature Reviews Systematic Review Review Mainly focused on one question.

Literature It describes an overview and not based on a single question.

It follows peer review protocol or plan.

It has no protocol.

Study-specific objectives are identified.

No such objectives will be identified.

A systematic search will be

Search strategy will not be mentioned.

conducted. Clear and explicit.

Not described

Research question specific information

Extracting relevant information is not

extraction.

specific to a single question

Conclusio n In summary, a systematic review is a search of all sources of evidence for relevant studies or on research question specific study.

Predetermined reproducible criteria to screen for eligibility and relevance assessment of titles and the abstracts will be followed.

Each study will then be assessed in terms of methodological quality, and finally, the evidence is synthesized.

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