Abstract
In Mali, blind and partially sighted people represent 1.2% of the population. Good quality and low cost ophthalmologic care is available, but, unfortunately, is insufficiently taken advantage of. In order to contribute to the analysis of this situation a valid and reliable questionnaire was needed to take the patient’s perspective into account. Because of face validity concerns, it was not possible to merely translate an existing questionnaire. Thus we decided to develop a new questionnaire directly in one of the main languages of Mali: Bambara. This involved the setting of a study team composed of social and health science specialists, the majority of whom were native Bambara speakers.
The overall project consisted in the iteration of three main steps (1) Conceptual clarification and operationalization of this concept. (2) Qualitative steps: qualitative interviews, focus groups and content analysis. (3) Quantitative steps: statistical analysis of an initial try-out survey (143 participants) and a validation survey (420 participants).
This approach yields satisfying results. Indeed, the final version of the IOTAQOL has good psychometric properties. Thus, this interviewer administered instrument can be used to measure health-related quality-of-life in Mali and the methodology that we used could serve as a basis for similar projects.
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References
Schemann JF, Leplège A, Keita T, Resnikoff S. From visual function deficiency to handicap: Measuring visual handicap in Mali. Ophthalmic Epidemiol 2002; 9(2): 133–148.
Crabtree HL, Hildreth AJ, O’Connell JE, Phelan PS, Allen D, Gray CS. Measuring visual symptoms in British cataract patients: the cataract symptom scale. Br J Ophthalmol 1999; 83(5): 519–523.
Fletcher A, Vijaykumar V, et al. The Madurai Intraocular Lens Study. III: Visual functioning and quality of life outcomes [see comments]. Am J Ophthalmol 1998; 125(1): 26–35.
Oliver JE, Thulasiraj RD, et al. Vision-specific function and quality of life after cataract extraction in south India. J Cataract Refract Surg 1998; 24(2): 222–229.
Anderson R, Aaronson NK, Leplège A, et Wilkin D. Review of the international assessment of health related quality of life. In: Spilker B (ed.), Quality of Life, and Pharmacoeconomics in Clinical Trials. Philadelphia, Raven Press 1996: 613–632.
Leplège A. et Verdier A. The adaptation of health status measures: Methodological aspects of the translation procedure. In: Shumaker S, et Berzon R (eds) International Use and Performance of Health Related Quality of Life Instruments. Rapid Communication of Oxford, Oxford 1995: 93–101.
Guyatt GH. The philosophy of health-related quality of life translation. Qual Life Res 1993; 2(6): 461–465.
Streiner DL, Norman GR (1989) Health measurement scales. A practical guide to their development and use. Oxford University Press.
WHO Chron. 1947; 1: 196p.. (Preamble to the Constitution of the World Health Organization as adopted by the International Health Conference, New York, 19–22 June, 1946; signed on 22 July 1946 by the representatives of 61 States (Official Records of the World Health Organization, no. 2, p. 100) and entered into force on 7 April 1948
Group WHOW. (1994) The WHO quality of life assessment instrument. Heidelberg, Springer-Verlag.
Guyatt GWS, Norman G. Measuring change over time: Assessing the usefulness of evaluative instruments. J Chronic Dis 1987; 40: 171–178.
Likert RA. A Technique for the measurement of attitudes. Arch Psychol 1932; 140: 5.
Ware JE, Harris WJ, Gandek B, Rogers BW, Reese PR (1997) MAP-R for windows: Multitrait/multi-item Analysis Program – Revised. Boston, Health Assessment Lab.
Gandeck B, Ware JE, Aaronson NK, Alonso J, Apolone G, Bjorner J, Brazier J, Bullinger M, Fukuhara S, Kaasa S, Leplege A, Sullivan M. Tests of data quality, scaling assumptions, and reliability of the SF-36 in eleven countries: Results from the IQOLA Project. J Clin Epidemiol 1998; 51(11): 1149–1158.
Acknowledgements
We want to thank Pr Sonja Hunt who read a initial version of this paper and provided numerous useful suggestions. This project has been made possible by a grant from the European Union and the French Ministry of Cooperation.
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Leplège, A., Schemann, J.F., Diakité, B. et al. A New Condition Specific Quality of Life Measure for the Blind and the Partially Sighted in Sub-Saharan Africa, the IOTAQOL : Methodological Aspects of the Development Procedure. Qual Life Res 15, 1373–1382 (2006). https://doi.org/10.1007/s11136-006-0023-y
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DOI: https://doi.org/10.1007/s11136-006-0023-y