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Table 5 Quality of evidence and sensitivity analysis in non-Cochrane reviews

From: Risk of bias assessment of sequence generation: a study of 100 systematic reviews of trials

Rated any randomised trials as high/unclear ROB for sequence generation) Quality assessment using GRADE Quality assessment using a tool other than GRADE Conducted sensitivity analysis based on ROB
Downgraded for study limitations (not specified) Downgraded for study limitations (selection bias) Downgraded for study limitations (not specified) Downgraded for study limitations (selection bias)
Non-Cochrane reviews (n = 24)a 1 (4.2%) 2 (8.3%) 2 (8.3%) 0 1 (4.2%)
  1. aEleven of the 24 (45.8%) reviews did not conduct any assessment of quality of evidence; 1 of the 24 (4.2%) reviews did not downgrade at all and rated quality of evidence as high; 7 of the 24 (29.2%) reviews only downgraded for factors other than selection bias despite risk of bias being part of the assessment tool used