Abstract
BackgroundThe Hip Outcome Score (HOS) was developed to evaluate physically active patients with hip disease but without severe degenerative change. A translation and cultural adaptation into Brazilian Portuguese was previously conducted. The aim of this study was to validate the Brazilian version of the HOS (HOS-Brazil) among a group of physically active patients with a diagnosis of femoroacetabular impingement (FAI) or greater trochanteric pain syndrome (GTPS).MethodsThe following questionnaires were applied: the HOS-Brazil; the validated Brazilian versions of the Nonarthritic Hip Score (NAHS) and the 12-Item Short-Form Health Survey (SF-12). The psychometric properties analyzed with regard to the validation process were reliability and validity. Internal consistency and intra-rater test-retest reliabilities were analyzed using Cronbach’s alpha and the intraclass correlation coefficient (ICC) statistical tests based on test-retest agreement. Construct and content validities were examined using Pearson’s correlation coefficient. Content validity was also analyzed based on evidence of floor, ceiling, or both types of effects from the questionnaires.ResultsA total of 70 male and female patients were selected, aged between 19 and 70 years old. The internal consistency and intra-rater test-retest reliability values were high (Cronbach’s α > 0.9; ICC > 0.9). The questionnaire showed acceptable convergent (r > 0.7) and divergent (r < 0.4) validities. No floor or ceiling effects were observed.ConclusionThe HOS-Brazil was validated. Additional studies are underway to evaluate its responsiveness.
Highlights
The Hip Outcome Score (HOS) was developed to evaluate physically active patients with hip disease but without severe degenerative change
Questionnaire results The scores on the three applied questionnaires ranged from 2 to 99; higher scores denoted better quality of life (SF-12) and hip function (NAHS and HOS-Brazil)
The HOS is a quality of life assessment instrument specific to people with hip disease without severe degenerative abnormalities that was originally developed in English [1]
Summary
The Hip Outcome Score (HOS) was developed to evaluate physically active patients with hip disease but without severe degenerative change. The Hip Outcome Score (HOS) is an instrument used to assess patients with hip disorders who are young, physically active, or both but who do not have severe degenerative abnormalities. Most quality of life instruments and orthopedic assessments were originally developed in English [1, 2, 8, 9] For these instruments to be used across cultures and languages, several steps of translation and cross-cultural adaptation should be accomplished. These steps should be followed by validation to determine whether the new instrument conserves the psychometric characteristics of the original [10,11,12]
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