Cross-cultural validation of the ICOAP and physical function short forms of the HOOS and KOOS in a multi-country study of patients with hip and knee osteoarthritis

S P Mehta; A Sankar; V Venkataramanan; L S Lohmander; J N Katz; G A Hawker; L Gossec; E M Roos; J-F Maillefert; M Kloppenburg; M Dougados; A M Davis

doi:10.1016/j.joca.2016.07.014

Cross-cultural validation of the ICOAP and physical function short forms of the HOOS and KOOS in a multi-country study of patients with hip and knee osteoarthritis

Osteoarthritis Cartilage. 2016 Dec;24(12):2077-2081. doi: 10.1016/j.joca.2016.07.014. Epub 2016 Aug 4.

Authors

S P Mehta¹, A Sankar², V Venkataramanan², L S Lohmander³, J N Katz⁴, G A Hawker⁵, L Gossec⁶, E M Roos⁷, J-F Maillefert⁸, M Kloppenburg⁹, M Dougados¹⁰, A M Davis¹¹

Affiliations

¹ Division of Health Care and Outcomes Research, Kremble Research Institute, Toronto, Ontario, Canada; School of Physical Therapy and Dept. of Orthopedics, Marshall University, Huntington, WV, USA.
² Division of Health Care and Outcomes Research and Arthritis Community Research and Evaluation Unit, Kremble Research Institute, Toronto, Ontario, Canada.
³ Department of Orthopaedics, Clinical Sciences Lund, Lund University, Lund, Sweden; Institute of Sports and Clinical Biomechanics, University of Southern Denmark, Denmark.
⁴ Division of Rheumatology, Department of Immunology and Allergy, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA; Department of Orthopedic Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA; Department of Epidemiology, Harvard School of Public Health, Boston, MA, USA.
⁵ Division of Rheumatology, Department of Medicine, Women's College Research Institute, Women's College Hospital, University of Toronto, Toronto, Ontario, Canada; Department of Health Policy, Management and Evaluation, University of Toronto, Canada; Adjunct Scientist, Institute of Clinical Evaluative Sciences, Faculty of Medicine, University of Toronto, Canada.
⁶ UPMC Univ Paris 06, GRC-UPMC 08 (EEMOIS), France; AP-HP, Pitié Salpêtrière Hospital, Department of Rheumatology, Paris, France.
⁷ Institute of Sports and Clinical Biomechanics, University of Southern Denmark, Denmark.
⁸ Department of Rheumatology, Dijon University Hospital and INSERM U1093, UFR Medecine, University of Burgondy, France.
⁹ Department of Rheumatology, Leiden University Medical Center, Leiden, The Netherlands; Department of Clinical Epidemiology, Leiden University Medical Center, Leiden, The Netherlands.
¹⁰ Paris Descartes University, Department of Rheumatology-Hôpital Cochin - Assistance Publique - Hôpitaux de Paris, INSERM (U1153): Clinical Epidemiology and Biostatistics, PRES Sorbonne Paris-Cité, France.
¹¹ Division of Health Care and Outcomes Research, Kremble Research Institute, Toronto, Ontario, Canada; Department of Health Policy, Management and Evaluation, University of Toronto, Canada; Department of Rehabilitation Science, University of Toronto, Canada. Electronic address: adavis@uhnresearch.ca.

PMID: 27497697
DOI: 10.1016/j.joca.2016.07.014

Abstract

Objective: To evaluate the internal consistency and construct validity of the Physical Function short-forms for the Hip and Knee Injury Osteoarthritis Outcome Scores (HOOS-PS/KOOS-PS) and the Intermittent and Constant Osteoarthritis Pain (ICOAP) in a nine country study of patients consulting for total hip or knee replacement (THR or TKR).

Methods: Patients completed HOOS-PS or KOOS-PS, ICOAP and Western Ontario and McMaster Universities' Osteoarthritis Index (WOMAC) pain and physical function subscales at their consultation visit. Internal consistency was calculated using Cronbach's alpha. The association of HOOS-PS/KOOS-PS and ICOAP with WOMAC pain and function subscales was calculated with Spearman correlation coefficients with 95% confidence intervals.

Results: HOOS-PS/KOOS-PS and ICOAP demonstrated high internal consistency across countries (alpha 0.75-0.96 (hip) and 0.76-0.95 (knee)). Both HOOS-PS and KOOS-PS demonstrated high correlations (0.76-0.90 and 0.75-0.91, respectively) with WOMAC function in all countries. ICOAP exhibited moderate to high correlations with WOMAC pain and function subscales (0.53-0.84 (hip) and 0.43-0.84 (knee)).

Conclusion: The psychometric properties of the HOOS-PS/KOOS-PS, and ICOAP were maintained across all countries.

Keywords: Cross-cultural validation; HOOS-PS; Hip or knee osteoarthritis; ICOAP; KOOS-PS.

MeSH terms

Cross-Cultural Comparison
Disability Evaluation
Humans
Osteoarthritis, Hip
Osteoarthritis, Knee*
Pain Measurement
Reproducibility of Results
Severity of Illness Index
Surveys and Questionnaires

Grants and funding

P50 AR060752/AR/NIAMS NIH HHS/United States