Consensus meeting

Representatives of UK-based stakeholder groups and members of the study team were invited to attend a consensus meeting (September 2017). Prior to the meeting, we sent participants summary statistics for all 34 metrics from the Delphi survey. Ahead of the consensus meeting, participants were asked to review all the metrics that had reached the consensus in status following the survey, as only these metrics would be discussed and voted on during the meeting. Anyone wishing to make a case for discussion of any of the remaining metrics were given the opportunity to do so before the start of the meeting. At the consensus meeting, each metric was discussed in turn, and participants voted for its inclusion in the final core set using an anonymous electronic voting system. Metrics with >50% of participants voting for its inclusion were retained.