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Validation of the Dutch version of the Hip disability and Osteoarthritis Outcome Score
I B de Groot1, M Reijman, C B Terwee
1Department of Orthopaedics, Erasmus MC, Rotterdam, The Netherlands. i.b.degroot@erasmusmc.nl
Introduction:
The Hip disability and Osteoarthritis Outcome Score (HOOS) was constructed in Sweden; this questionnaire has proved to be valid for persons with hip disability with or without hip osteoarthritis (OA) and with high demands of physical function.
Objective:
The objective of this study was to evaluate the internal consistency, reliability, construct validity, and floor and ceiling effects of the Dutch version of the HOOS questionnaire.
Patients And Methods:
After translation with a forward/backward protocol, 74 hip arthroplasty patients and 88 hip OA patients filled in the Dutch HOOS, as well as a Short Form-36 (SF-36), an Oxford Hip Score (OHS) and a VAS-pain questionnaire.
Results:
The Dutch version of the HOOS questionnaire achieved excellent scores in all of the clinimetric properties.
Conclusion:
The Dutch HOOS questionnaire has a good internal consistency and reliability. Moreover, the construct validity is good and no floor and ceiling effects were found. The HOOS is a good instrument for patients with different stadia of hip OA.