1. Delphi criteria for methodological assessment.

criteria

1. Was a method a randomisation performed? 2. Was the treatment allocation concealed? 3. Were the groups similar at baseline regarding the most important prognostic indicators? 4. Were the eligibility criteria specified? 5. Was the outcome assessor blinded to the intervention? 6. Was the care provider blinded to the intervention? 7. Was the patient blinded to the intervention? 8. Were point estimates and measures of variability presented for the primary outcome measures? 9. Did the analysis include an intention‐to‐treat analysis? 10. Was the dropout or withdrawal rate unlikely to cause bias?