Table 1

e-Delphi consensus definition

Consensus inConsensus that outcome should be included in the core outcome set (COS)≥70% participants scoring 7 to 9 AND <15% participants scoring 1 to 3
Consensus outConsensus that outcome should not be included in the COS≤50% participants scoring 7–9 in each stakeholder group
No consensusUncertainty about importance of the outcomeAnything else