CROSS CULTURAL ADAPTATION, RELIABILITY AND VALIDITY OF URDU VERSION OF HIP OUTCOME SCORE

Abstract

Purpose: To linguistically and cross-culturally translate the Hip Outcome Score (HOS) into Urdu and evaluate its psychometric properties in patients with hip pain, thereby promoting Good Health and Well-being (SDG 3) through improved access to culturally appropriate, reliable, and valid patient-reported outcome measures for assessing hip-related health and functional outcomes.

Materials and Methods: The original HOS version was translated and cross-culturally adapted in accordance with international guidelines. The study comprised 300 participants with hip pain. The patients filled out a self-structured questionnaire for demographic data, as well as the HOS-Urdu, Hip Disability and Osteoarthritis Outcome Score (HOOS), Visual Analogue Scale for Pain (VASpain), and Visual Analogue Scale for Disability (VASdisability). Psychometric testing included internal consistency and test-retest reliability, content and construct validity.

Results: The HOS-U demonstrated satisfactory internal consistency, with Cronbach's alpha values of 0.85 for ADL and 0.86 for Sports subscales. Excellent reliability was observed across all HOS-U subscales, with Intra Class Correlation Coefficient (ICC) 0.99-0.99. No floor or ceiling effects were observed. The HOS-U ADL and Sports subscales showed strong correlations with the HOOS ADL subscales (0.77 and 0.70, respectively) and a strong correlation between the HOS-U ADL and HOOS Pain subscales (0.73). Moderate correlations were noted between HOS-U ADL and Sports subscales with HOOS Symptoms, Sports, and QOL subscales. Additionally, moderate correlations were observed between HOS-U subscales and VAS Pain (-0.43 and -0.56) as well as VAS Disability (-0.43 and 0.56).

Conclusion: HOS-Urdu is a reliable, valid tool for assessing hip pain and disability outcomes in Urdu speaking population.