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  Assessing risk of
bias in randomised
controlled trials
Jack Wilkinson
@jd_wilko
University of Manchester Centre for Biostatistics
With huge thanks to Sarah Lensen and Jane Marjoribanks
Trusted evidence. Informed decisions. Better health.
Steps of a Cochrane Review
1. define the question
2. plan eligibility criteria
3. plan methods
4. search for studies
5. apply eligibility criteria
6. collect data
7. assess studies for risk of bias
8. analyse and present results
9. interpret results and draw conclusions 10.improve and update review
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