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New RoB tool
Currently in development. Likely changes:
• Signalling questions to help guide judgement e.g. “Was the outcome measure likely to be influenced by knowledge of allocation?”
• Change from
– low, unclear, high to
– yes, probably yes, probably no, no, no information
• No ‘unclear’ domain
• Likely release date:2020
Take home messages
Even with plenty of guidance there will always be an element of subjectivity
• Pre-define how judgments will be made in the protocol (will you consider lack of blinding to be high-risk or not?)
• Be consistent in judging each study
• Backupalljudgementswithdetailedinformation, quoted excerpts and rationale: avoid having to revisit primary studies to check things after peer review!
• Refer to CFG Guidance and to the Cochrane Handbook
• If you get stuck ask a review team member or the managing editor (Helen Nagels) or one of us
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