Shared Decision-Making Measures: A Systematic Review

Area of Science:

• Health Services Research
• Patient-Centered Care
• Measurement Science

Background:

• Shared decision-making (SDM) is integral to patient-provider interactions in healthcare.
• Evaluating the quality of instruments measuring SDM is crucial for reliable research.
• The COnsensus-based Standards for the selection of health Measurement INstruments (COSMIN) system provides a framework for instrument appraisal.

Purpose of the Study:

• To critically appraise instruments measuring SDM in healthcare decisions.
• To assess the validity and reliability of SDM measurement tools using COSMIN criteria.
• To guide researchers in selecting appropriate SDM instruments.

Main Methods:

• Systematic review adhering to PRISMA guidelines.
• Comprehensive literature search across multiple databases (PubMed, MEDLINE, etc.).
• Appraisal of 17 SDM instruments using the COSMIN checklist and rating scale (very good, adequate, doubtful, inadequate).

Main Results:

• A wide variety of SDM instruments exist, measuring different perspectives (patient, provider, observer).
• Only the OPTION 12 Scale received an excellent rating across all COSMIN validity sections.
• The majority of SDM instruments demonstrated poor performance on the COSMIN checklist.

Conclusions:

• Most available instruments for measuring SDM have significant quality limitations.
• Researchers must conduct thorough critical appraisals of SDM instruments before use.
• The OPTION 12 Scale is a highly-rated instrument for measuring SDM, but further validation may be needed.