Background & Aims

Core outcome sets (COS) are important for research to compare data across studies and maximize resources to improve health outcomes. COS are often developed through a Delphi method, which collects stakeholders’ opinions in a stepwise approach for consensus. INTEGRATE-Pain, a US-EU collaboration to advance pain research and clinical practice, undertook a large-scale, 3-round, international Delphi to reach consensus on COS across the pain continuum. The Delphi was unique because: 1) persons with lived experience of pain (PWLE) advised the research team from its inception to completion, represented 50% of respondents, and had their views weighted equally to those of researchers and clinicians; 2) participants represented diverse geographic and professional backgrounds; and 3) the COS are intended for use in research and clinical settings for all pain-related conditions. Given the scale and uniqueness of this Delphi, we aim to illuminate the lessons learned to inform future COS efforts.

Methods

We describe the decision-making for each step of the INTEGRATE-Pain Delphi, outline the strengths and challenges we experienced at these steps, and provide recommendations for future COS researchers to consider. Specifically, we discuss strengths, challenges, and recommendations regarding: 1) engaging stakeholders to establish the need for a COS, defining the scope of the COS, and registering the project; 2) identifying key personnel; 3) identifying initial domains and subdomains; 4) implementing the Delphi; and 5) finalizing the COS. We also outline recommendations related to COS uptake and guidance for developing COS through a Delphi. Findings presented were compiled based on feedback from Delphi participants (via the open-ended solicitation of comments/feedback during voting), from meetings with advisory committees (AC) and steering committees, and from reflections from the co-chairs that led the study.

Results

To engage stakeholders, we recommend a kick-off meeting to gather input, and inclusion of people with diverse backgrounds/opinions and PWLE at all stages of the process. When identifying key personnel, ensure diversity on each AC. Before commencing Delphi voting, train those inexperienced in COS/Delphi methods and be mindful of PWLEs’ needs. To identify initial domains for voting, we suggest holding focus groups and qualitative interviews and balancing domains from published literature with input from Delphi stakeholders. Ensure all domains are defined and combine similar domains or subdomains. Ensure surveys and communication with voters are clear and accessible. Consider using a Delphi management tool for survey administration/participation. Use mixed methods to analyze surveys and feedback/suggested domains submitted by voters. When finalizing the results, consider a final consensus meeting and an appropriate dissemination plan, and provide avenues for feedback.

Conclusions

We led an international Delphi to develop COS for acute, recurrent, and chronic pain, and acute to chronic pain translation. The Delphi was unique in that over 350 individuals from around the world participated, 50% of whom were PWLE. This abstract highlights our methodological decisions and the lessons we learned conducting an international Delphi. We hope to provide recommendations to future COS researchers related to engaging stakeholders and building buy-in, recruiting Delphi participants, using literature and qualitative feedback to generate initial lists of domains for voting, implementing the Delphi, and finalizing the COS. It is important to consider robust dissemination plans for the COS because COS have had variable uptake among researchers/clinicians and international enforcement of COS is difficult. Lastly, the COS field could benefit from further research to empirically test various Delphi methodologies and establish evidence-based guidelines for COS development.

References

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Presenting Author

Giulia Bova

Poster Authors

Giulia Bova

National Institute of Health

Lead Author

Laura Wandner

PhD

National Institute of Health

Lead Author

Janelle Letzen

PhD

National Institute of Health

Lead Author

Kate Nicholson

National Pain Advocacy Center

Lead Author

Judy Birch

B.Ed

Pelvic Pain Support Network

Lead Author

Daniela C. Rosenberger

MD

Department of Anaesthesiology, Intensive Care and Pain Medicine, University Hospital Muenster

Lead Author

Adam Anicich

MBA

NIH-DoD-VA Pain Management Collaboratory

Lead Author

Ulrike Kaiser

PhD, MD

University Hospital Schleswig-Holstein, Clinic for Anesthesiology / Intensive Care Medicine, Lübeck

Lead Author

Anthony Domenichiello

PhD

Lead Author

Esther Pogatzki-Zahn

PhD

Lead Author

Topics

  • Assessment and Diagnosis