The PROMIS-Plus-Osteoarthritis of the Knee (OAK) profile measure integrates generic and condition-specific content to enhance relevance and efficiency

Susan E. Yount, Michael A. Kallen, Karen E. Schifferdecker, Kathleen L. Carluzzo, Lynn M. Marshall, Kathryn Schabel, William Robb, David W. Manning, Elliott S. Fisher, David Cella

Research output: Contribution to journalArticlepeer-review

Abstract

Objective: The Patient-Reported Outcomes Measurement Information System (PROMIS)-Plus-Osteoarthritis of the Knee (OAK) profile integrates universal PROMIS items with knee-specific items across 13 domains. We evaluated the psychometric properties of a subset of six domains associated with quality of life in people with OAK. Study Design and Setting: In a cross-sectional study of OAK patients (n=600), we estimated reliability using Pearson and Spearman correlations with Knee Injury and Osteoarthritis Outcome Score (KOOS) subscores and known-groups validity with PROMIS Global Health. Measure responsiveness was tested via paired t-tests in a longitudinal study (n=238), pre/post total knee replacement. Results: Across the six domains, internal consistency reliability (Cronbach's alpha) was 0.77−0.95 and test-retest reliability (intraclass correlation coefficients) was ≥0.90. Correlations with Knee Injury and Osteoarthritis Outcome Score (KOOS) subscores and PROMIS Global supported convergent and divergent validity. Known-groups validity testing revealed better scores in all domains for high vs. low global status groups, and knee-specific items added value in physical function and pain. All domains reflected (p<0.001) better health status scores at follow up. Conclusion: The six PROMIS-Plus-OAK profile domains demonstrated good psychometric characteristics. The measure integrates universal and knee-specific content to provide enhanced relevance, measurement precision and efficient administration for patient care and clinical research.

Original languageEnglish (US)
Pages (from-to)158-169
Number of pages12
JournalJournal of Clinical Epidemiology
Volume135
DOIs
StatePublished - Jul 2021

Keywords

  • Health outcomes
  • Knee
  • Osteoarthritis
  • Patient-reported outcomes
  • PROMIS
  • Questionnaires

ASJC Scopus subject areas

  • Epidemiology

Fingerprint

Dive into the research topics of 'The PROMIS-Plus-Osteoarthritis of the Knee (OAK) profile measure integrates generic and condition-specific content to enhance relevance and efficiency'. Together they form a unique fingerprint.

Cite this