Protocol for the development of an international Core Outcome Set for treatment trials in adults with epilepsy: the EPilepsy outcome Set for Effectiveness Trials Project (EPSET)

Table 2 EPSET study definition of consensus for the Core Outcome Set (COS)

Classification	Description	Criterion
Consensus ‘in’	Consensus that the outcome should be included in the COS	80% or more participants scoring 7 to 9 AND less than 10% scoring 1-3 in all stakeholder groups
Consensus ‘out’	Consensus that the outcome should not be included in the COS	50% or less participants scoring 7 to 9 in all stakeholder groups
No consensus	Uncertainty about the important of the outcome. Further discussion is required at the consensus meeting	Any other scoring

ISSN: 1745-6215