Adaptation and Validation of the Malay Version of the Osteoarthritis Knee and Hip Quality of Life Questionnaire among Knee Osteoarthritis Patients

• Published in: BioMed research international Vol. 2018; no. 2018; pp. 1 - 15
• Main Authors: Hassan, Intan Idiana, Ishak, Azlina, Mohd Arif, Mohd Faizal, Abdul Kadir, Azidah, Norhayati, Mohd Noor
• Format: Journal Article
• Language: English
• Published: Cairo, Egypt Hindawi Publishing Corporation 01-01-2018; Hindawi; John Wiley & Sons, Inc; Hindawi Limited
• Subjects: Aged; Analysis; Arthritis; Biocompatibility; Body mass; Body mass index; Body size; Correlation analysis; Correlation coefficient; Correlation coefficients; Cross-Sectional Studies; Data analysis; Exercise; Female; Goodness of fit; Hair; Hip; Humans; Hypothesis testing; Joint surgery; Knee; Malaysia; Male; Medical research; Medicine, Experimental; Mental health; Middle Aged; Osteoarthritis; Osteoarthritis, Knee - complications; Pain; Pain Measurement; Patients; Physical activity; Psychometrics; Quality assessment; Quality of Life; Quantitative psychology; Questionnaires; Reliability analysis; Reproducibility of Results; Response rates; Rheumatology; Severity of Illness Index; Social support; Statistical tests; Surveys; Surveys and Questionnaires; Validity; Malaysia
• ISSN: 2314-6133; 2314-6141
• DOI: 10.1155/2018/4329751

Objective. To adapt and validate the Malay version of Osteoarthritis Knee and Hip Quality of Life (OAKHQOL) questionnaire. Design. The OAKHQOL was adapted into Malay version using forward-backward translation methodology. It was then validated in a cross-sectional study of 191 patients with knee osteoarthritis (OA). Patients completed the OAKHQOL and Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) questionnaire. Confirmatory analysis, reliability analysis, and Pearson correlation test were performed. Results. The new five-factor model of 28 items demonstrated an acceptable level of goodness of fit (comparative fit index = 0.915, Tucker-Lewis index = 0.905, incremental fit index = 0.916, chi-squared/degree of freedom = 1.953, and root mean square error of approximation = 0.071), signifying a fit model. The Cronbach’s alpha value and the composite reliability of each construct ranged from 0.865 to 0.933 and 0.819 to 0.921, respectively. The Pearson correlation coefficient between the OAKHQOL and the WOMAC showed adequate criterion validity. Known groups validity showed statistical difference in body mass index in physical activity, mental health, and pain construct. The pain domain was statistically different between the age groups. Conclusion. The Malay version OAKHQOL questionnaire is a valid and reliable instrument to assess health-related quality of life in knee OA patients.