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Guidelines for Designing and Conducting Delphi Consensus Studies: An Expert Consensus Delphi Study.

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This Delphi project developed guidelines for medical and surgical Delphi studies. Key recommendations include clear consensus definitions, expert criteria, and a 3-round limit for reliable study design.

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Area of Science:

  • Medical research methodology
  • Surgical study design
  • Consensus development

Background:

  • Delphi studies are crucial for establishing consensus in medical and surgical fields.
  • Standardized guidelines are needed for robust Delphi study design and execution.

Purpose of the Study:

  • To develop evidence-based guidelines for designing and conducting Delphi studies in medical and surgical specialties.
  • To enhance the reliability and validity of consensus-derived recommendations.

Main Methods:

  • A three-round Delphi project involving expert panels.
  • Utilized open-ended, semi-open, and Likert-style questionnaires.
  • Defined consensus at 80% agreement, with specific categories for unanimous, very strong, and consensus.

Main Results:

  • Consensus was achieved on 56% of the 63 items evaluated.
  • Unanimous agreement (100%) was reached on 4 items.
  • Very strong consensus (90-99%) was established for 12 items, and consensus (80-89%) for 19 items.

Conclusions:

  • Key areas for consensus included iteration, establishing treatment guidelines, panel member track records, and steering committee expertise.
  • Recommendations emphasize clear consensus definitions, controlled feedback, precise expert criteria, and diverse panel selection.
  • Guidelines suggest limiting studies to 3 rounds with a steering committee developing questions and aiming for at least 80% consensus.