Using the Delphi method in psychosis research with experts by experience: a systematic review and development of a consensus definition of relapse

Key Points

• The aim is to establish a consensus definition of relapse in psychosis by engaging experts with lived experience.
• Conducted a systematic review of existing literature on psychosis and relapse definitions.
• Employed the Delphi method to gather insights from experts by experience.
• Facilitated multiple rounds of questionnaires to refine definitions based on expert feedback.
• Achieved a refined consensus definition of relapse in psychosis.
• Identified common themes and factors influencing relapse based on expert feedback.