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.

*Disability Evaluation, *Quality of Life, Activities of Daily Living, Adult, Aged, Aged, 80 and over, Female, Humans, Male, Middle Aged, Osteoarthritis, Hip/*diagnosis, Pain Measurement/methods, Questionnaires/*standards, Reproducibility of Results, Sensitivity and Specificity, Severity of Illness Index
dx.doi.org/10.1016/j.joca.2006.06.014, hdl.handle.net/1765/15690
Osteoarthritis and Cartilage
Erasmus MC: University Medical Center Rotterdam

de Groot, I.B, Reijman, M, Terwee, C.B, Bierma-Zeinstra, S.M, Favejee, M.M, Roos, E.M, & Verhaar, J.A.N. (2009). Validation of the Dutch version of the Hip disability and Osteoarthritis Outcome Score. Osteoarthritis and Cartilage, 17(1). doi:10.1016/j.joca.2006.06.014