Patient and healthcare practitioner evaluation of patient-reported outcomes in bariatric surgery - a modified Delphi study.

While there was considerable agreement between stakeholder groups on many outcomes, there remain several outcomes with discordant importance valuations that must be considered. In particular, healthcare practitioners prioritised 20 outcomes that were not prioritised by patients, emphasising the range of priorities across stakeholder groups. Future work will consider these priorities to ensure resulting measures encompass all important outcomes and are beneficial and valid for end users.