Country-specific reference values for PROMIS® pain, physical function and participation measures compared to US reference values

Caroline B. Terwee, Leo D. Roorda

Research output: Contribution to journalArticleAcademicpeer-review

3 Citations (Scopus)

Abstract

Introduction: Patient-Reported Outcomes Measurement Information System (PROMIS®) is commonly used across medical conditions. To facilitate interpretation of scores across countries, we calculated Dutch reference values for PROMIS Physical Function (PROMIS-PF), Pain Interference (PROMIS-PI), Pain Behavior (PROMIS-PB), Ability to Participate in Social Roles and Activities (PROMIS-APSRA), and Satisfaction with Social Roles and Activities (PROMIS-SSRA), as compared to US reference values. Patients and methods: A panel completed full PROMIS-PF (n=1310), PROMIS-PI and PROMIS-PB (n=1052), and PROMIS-APSRA and PROMIS-SSRA (n=1002) item banks and reported their level of health per domain (no, mild, moderate, severe limitations). T-scores were calculated by sample and subgroups (age, gender, self-reported level of domain). Distribution-based and anchor-based thresholds for mild, moderate, and severe scores were determined. Results: Mean T-scores were close to the US mean of 50 for PROMIS-PF (49.8) and PROMIS-APSRA (50.6), lower for PROMIS-SSRA (47.5) and higher for PROMIS-PI (54.9) and PROMIS-PB (52.0). Distribution-based thresholds for mild, moderate, and severe scores were comparable to US recommended cut-off values (except for PROMIS-PI) but participants reported limitations ‘earlier’ than suggested thresholds. Conclusion: Dutch reference values were close to US reference values for some PROMIS domains but not all. We recommend country-specific reference values to facilitate worldwide PROMIS use.KEY MESSAGES PROMIS offers universally applicable IRT-based efficient and patient-friendly measures to assess commonly relevant patient-reported outcomes across medical conditions. To support the use of PROMIS in daily clinical practice and research across the world, country-specific general population reference values should be obtained. More research is necessary to obtain reliable and valid cut-off values for what constitutes mild, moderate and severe scores from the patients’ perspective.
Original languageEnglish
Pages (from-to)1-11
Number of pages11
JournalAnnals of Medicine
Volume55
Issue number1
DOIs
Publication statusPublished - 2023

Keywords

  • PROMIS
  • Patient-reported outcomes
  • pain
  • participation
  • physical function
  • questionnaires
  • reference values

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