Evidence for reliability, validity and responsiveness of Turkish version of Hip Outcome Score

Abstract

Background: Hip Outcome Score (HOS), originally developed in English, assesses the severity of hippathology. To date, no Turkish version of the questionnaire exists.Purpose: The aim of our study was to translate the HOS into Turkish and verify its psychometricproperties.Methods: The translation and cultural adaptation were performed according to international recommendations inŞve stages: The HOS was translated into Turkish, consistent with published methodological guidelines. The process included 2 forward translations, followed by the synthesis of thesetranslations, and 2 backward translations, followed by an analysis of the translations and creation of theŞnal version. The measurement properties of the Turkish HOS (internal consistency, construct validity,floor and ceiling effects and responsiveness) were tested in 130 patients.Results: A committee consisting of the four translators agreed with theŞnal version of the HOS (HOS-Tr).The internal consistency and the test-retest reliability of the HOS-Tr-ADL and HOS-Tr-S subscales wereexcellent. Correlations between the HOS-Tr and convergent validity of the with HHS and NAHS were fairto good. The responsiveness of the HOS-Tr-ADL and HOS-Tr-S subscales were 3.4 to 1.4 for patientstreated with surgically and 0.9 to 1.1 for patients treated with non-surgically.Conclusion: The HOS-Tr is understandable, reliably, valid, and responsive for Turkish-speaking patientswith hip pathology.Level of Evidence: Level 3 Diagnostic Study.