Cross-cultural adaptation and validation of the reliability of the Thai version of the Hip disability and Osteoarthritis Outcome Score (HOOS)

Abstract

HOOS was developed as an extension of the Western Ontario and McMaster Universities' Osteoarthritis Index questionnaire for measuring symptoms and functional limitations related to the hip(s) of patients with osteoarthritis. To determine the validity and reliability of the Thai version of the Hip disability and Osteoarthritis Outcome Score (HOOS) vis-à-vis hip osteoarthritis, the original HOOS was translated into a Thai version of HOOS, according to international recommendations. Patients with hip osteoarthritis (n = 57; 25 males) were asked to complete the Thai version of HOOS twice: once then again after a 3-week interval. The test-retest reliability was analyzed using the intraclass correlation coefficient (ICC). Internal consistencies were analyzed using Cronbach's alpha, while the construct validity was tested by comparing the Thai HOOS with the Thai modified SF-36 and calculating the Spearman's rank correlation coefficients. The Thai HOOS produced good reliability (i.e., the ICC was greater than 0.9 in all five subscales). All of the Cronbach's alpha showed that the Thai HOOS had high internal consistency (Cronbach's alpha greater than 0.8), especially for the pain and ADL subscales (0.89 and 0.90, respectively). The Spearman's rank correlation for all five subscales of the Thai HOOS had moderate correlation with the Bodily Pain subscale of the Thai SF-36. The pain subscale of the Thai HOOS had a high correlation with the Vitality and Social Function subscales of the Thai SF-36 (r = 0.55 and 0.54)-with which the symptom subscale had a moderate correlation. The Thai version of HOOS had excellent internal consistency, excellent test-retest reliability, and good construct validity. It can be used as a reliable tool for assessing quality of life for patients with hip osteoarthritis in Thailand.

Cross-cultural adaptation and validation of the Italian version of the Hip disability and Osteoarthritis Outcome Score (HOOS)

“…The results of the assessment of the internal consistency were good for all subscales and were comparable to those observed in other language versions of the HOOS [ 4 – 7 , 9 ] suggesting good homogeneity. Cronbach’s alpha ADL subscale scored the highest value (0.96), according to the French (0.94) [ 4 ], Dutch (THA) (0.95) [ 5 ], Korean (0.96) [ 6 ] and original HOOS (0.96) [ 1 ] validation studies.…”

“…The convergent validity was tested by using Spearman’s rank correlation coefficient between the results of each HOOS and SF-36 subscales. Spearman’s correlation coefficients (rho) > 0.50, 0.35–0.50, and < 0.35 were considered strong, moderate and weak correlations, respectively [ 6 , 7 , 9 ]. As reported by Scalone et al [ 23 ], to be considered relevant for convergence, the correlation coefficients between equivalent domains are required to be higher than 0.2 and statistically significant.…”

Comparison of performance of specific (SLEQOL) and generic (SF36) health-related quality of life questionnaires and their associations with disease status of systemic lupus erythematosus: a longitudinal study

“…However, this study used a large cohort, followed prospectively, and used a longer period of follow-up than that the majority of studies reported. This study was performed in Thailand in the Thai language, but all the PROs used have been previously validated in Thai [28][29][30][31]. Finally, this was an observational study using usual care rather than an intervention; the comparability of generic vs. SLE-specific HRQoL instruments needs to be confirmed in the setting of an interventional trial with an effective agent.…”

“…SLEQOL was developed in Singapore and incorporates questions suitable for oriental cultures [7]. Both SLE-QOL and SF36 surveys have been translated into Thai, validated [28,29], and used in many clinical studies in Thailand [30,31].…”

Hip complaints differ across age and sex: a population-based reference data for the Hip disability and Osteoarthritis Outcome Score (HOOS)

“…To facilitate the interpretation of responses to interventions and in clinical decision-making, a comparison with appropriate reference values is essential [ 12 ]. However, there is a lack of reference data for many clinical measures from the general population, in particular with regard to the relationship between demographic factors and self-reported hip status [ 12 ].…”