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The online version of this article (doi:10.1007/s11136-015-0933-7) contains supplementary material, which is available to authorized users.
To assess the validity and reliability of the Malay version of the Quality of Life (QOL) Questionnaire of the European Foundation for Osteoporosis (QUALEFFO-41) in Malaysia.
The QUALEFFO-41 was translated from English to Malay and administered to 215 post-menopausal osteoporotic women ≥50 years who could understand Malay, at baseline and 4 weeks. The SF-36 was administered at baseline to assess convergent validity. To assess discriminative validity, patients with and without back pain were recruited.
Confirmatory factor analysis showed that the QUALEFFO-41 had five domains. Good internal consistency was seen in all domains (0.752–0.925) except for the social activity domain (0.692). Test–retest reliability showed adequate correlation for all items (0.752–0.964, p < 0.001). Patients with back pain had significantly worse QOL compared with those without (back pain = 42.2 ± 10.9, no back pain = 33.3 ± 8.9; p < 0.001). The total QUALEFFO-41 score and the SF-36 physical and mental composite scores were significantly correlated (−0.636 and −0.529, p < 0.001, respectively).
The Malay version of the QUALEFFO-41 was found to be a reliable and valid instrument to evaluate the QOL of osteoporotic patients in Malaysia. To enable the QUALEFFO-41 to be used in a multiracial population, further studies should look into validating other versions of the QUALEFFO-41 in Malaysia.
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Supplementary material 1 (DOCX 25 kb)11136_2015_933_MOESM1_ESM.docx
International Osteoporosis Foundation. (2014). Facts and statistics. Retrieved August 11, 2014 from http://www.iofbonehealth.org/print/11862
Adachi, J.D., Ioannidis, G., Olszynski, W.P., Brown, J.P., Hanley, D.A., Sebaldt, R.J., Petrie, A., Tenenhouse, A., Stephenson, G.F., Papaioannou, A., Guyatt, G.H., & Goldsmith, C.H. (2002). The impact of incident vertebral and non-vertebral fractures on health related quality of life in postmenopausal women. BMC Musculoskeletal Disorders, 3(11).
Silverman, S. L. (2000). The Osteoporosis Assessment Questionnaire (OPAQ): A reliable and valid disease-targeted measure of health-related quality of life (HRQOL) in osteoporosis. Quality of Life Research, 9(1), 767–774. CrossRef
Helmes, E., Hodsman, A., Lazowski, D., Bhardwaj, A., Crilly, R., Nichol, P., et al. (1995). A questionnaire to evaluate disability in osteoporotic patients with vertebral compression fractures. The Journals of Gerontology Series A: Biological Sciences and Medical Sciences, 50A(2), M91–M98. CrossRef
Guyatt, G. H., & Cook, D. J. (1997). Osteoporosis quality of life study group: Measuring quality of life in women with osteoporosis. Osteoporosis International, 7(5), 478–487.
Cook, D. J., Guyatt, G. H., Adachi, J. D., Epstein, R. S., Juniper, E. F., Austin, P. A., et al. (1999). Development and validation of the mini-osteoporosis quality of life questionnaire (OQLQ) in osteoporotic women with back pain due to vertebral fractures. Osteoporosis Quality of Life Study Group. Osteoporosis International, 10(3), 207–213. PubMedCrossRef
Lips, P., & Leplege, A. (2000). Development and validation of a quality of life questionnaire for patients with vertebral fractures: Qualeffo-41. Quality of Life Research, 9(1), 763–766. CrossRef
Lai, P. S. M., Chua, S. S., Chan, S. P., & Low, W. Y. (2008). Validation of the English version of the quality of life questionnaire of the European Foundation for Osteoporosis (QUALEFFO) in Malaysia. International Journal of Rheumatic Diseases, 11(4), 421–429. CrossRef
Khuong, M. N., & Yen, N. H. (2014). The effects of leadership styles and sociability trait emotional intelligence on employee engagement. International Journal of Current Research and Review, 2(1), 121–136.
Wild, D., Grove, A., Martin, M., Eremenco, S., McElroy, S., Verjee-Lorenz, A., & Erikson, J. (2005). Principles of good practice for the translation and cultural adaptation process for patient-reported outcomes (PRO) measures: Report of the ISPOR task force for translation and cultural adaptation. Value in Health, 8(2), 94–104. PubMedCrossRef
Hu, L. T., & Bentler, P. M. (1999). Cutoff criteria for fit indexes in covariance structure analysis: Conventional criteria versus new alternatives. Structural Equation Modeling, 6(1), 1–55. CrossRef
Yusoff, M. S. B. (2011). A confirmatory factor analysis study on the medical student stressor questionnaire among Malaysian medical students. Medical Journal of Malaysia, 3(1), e44–e53.
Cronbach, L. J. (1951). Coefficient alpha and the internal structure of test. Psychometrika, 16, 297. CrossRef
De Vellis, R. F. (1991). Scale development: Theory and applications. Newbury Park: Sage.
Liao, C.W., & Qu, Y. (2010). Alternate Forms Test-Retest Reliability and Test Score Changes for the TOEIC Speaking and Writing Tests. Paper presented at the TOEIC Compendium.
de Oliveira Ferreira, N., Arthuso, M., da Silva, R. B., Pinto-Neto, A. M., & Costa-Paiva, L. (2013). Validation of the Portuguese version of the quality of life questionnaire of the European foundation for osteoporosis (QUALEFFO-41) in Brazilian women with postmenopausal osteoporosis with vertebral fracture. Clinical Rheumatology, 32, 1585–1592. PubMedCrossRef
Pérez, E. R., Clark, P., Wacher, N. H., Cardiel, M. H., & García, M. D. (2008). Cultural adaptation and validation of the Quality of Life Questionnaire of the European Foundation for Osteoporosis (QUALEFFO) in a Mexican population. Clinical Rheumatology, 27, 151–161. CrossRef
- Validation of the Malay version of the Quality of Life Questionnaire of the European Foundation for Osteoporosis (QUALEFFO-41) in Malaysia
Su May Liew
Pauline Siew Mei Lai
- Springer International Publishing