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Gepubliceerd in: Quality of Life Research 6/2008

01-08-2008 | Brief Communication

Measuring breast cancer-specific health-related quality of life in South Asia: psychometric properties of the Sinhala version of the EORTC QLQ-BR23

Auteurs: Harindra Jayasekara, Lalini C. Rajapaksa, Yvonne Brandberg

Gepubliceerd in: Quality of Life Research | Uitgave 6/2008

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Abstract

Objective

To evaluate the psychometric properties of the Sinhala version of the breast cancer-specific health-related quality of life (HRQL) module of the European Organization for Research and Treatment of Cancer (QLQ-BR23).

Methods

Psychometric testing assessed the hypothesized scale structure, internal consistency, construct validity and acceptability of the Sinhala version of the QLQ-BR23 in a consecutive series of 356 newly diagnosed breast cancer patients recruited from tertiary care oncology treatment centres in Sri Lanka.

Results

Compliance and self-completion rates were high (98% and 88%, respectively), and missing data low (0.06%). Multitrait scaling confirmed the scale structure of the QLQ-BR23 with excellent item convergence (95%), item discrimination (99%), and scaling success (99%) rates. The Cronbach’s alpha coefficients of the scales for internal consistency reliability ranged from 0.68 to 0.93. Construct validity was confirmed with satisfactory results for interscale correlations and known-groups comparisons. QLQ-BR23 item-scale correlations met or exceeded the convergent validity criterion of 0.40 for all but one item. QLQ-BR23 interscale correlations met this criterion for three comparisons and for five comparisons with conceptually related QLQ-C30 scales. Correlations between QLQ-BR23 scales and QLQ-C30 functional scales were lower as expected. As expected, most dimensions of the QLQ-BR23 were able to discriminate clearly between pretreatment and current treatment patients.

Conclusion

Overall psychometric results for the Sinhala version of the QLQ-BR23 confirmed it as a reliable and valid questionnaire for assessing breast cancer-specific HRQL in Sri Lanka.
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Literatuur
1.
go back to reference Sloan, F. A., & Gelband, H. (Eds.) (2006). Cancer control opportunities in low- and middle-income countries. Washington DC: The National Academies. Sloan, F. A., & Gelband, H. (Eds.) (2006). Cancer control opportunities in low- and middle-income countries. Washington DC: The National Academies.
2.
go back to reference National Cancer Control Programme. (2006). Cancer incidence data: Sri Lanka 2000, cancer registry. Maharagama: National Cancer Control Programme. National Cancer Control Programme. (2006). Cancer incidence data: Sri Lanka 2000, cancer registry. Maharagama: National Cancer Control Programme.
3.
go back to reference Sprangers, M. A. G., Groenvold, M., Arraras, J. I., et al. (1996). The European Organisation for Research and Treatment of Cancer Breast Cancer-Specific Quality-of-Life Questionnaire Module: First results from a three-country field study. Journal of Clinical Oncology, 14(10), 2756–2768.PubMed Sprangers, M. A. G., Groenvold, M., Arraras, J. I., et al. (1996). The European Organisation for Research and Treatment of Cancer Breast Cancer-Specific Quality-of-Life Questionnaire Module: First results from a three-country field study. Journal of Clinical Oncology, 14(10), 2756–2768.PubMed
4.
go back to reference Jayasekara, H. D. M. H., & Rajapaksa, L. C. (2006). An assessment of quality-of-life and satisfaction with care in patients diagnosed with some common cancers. Thesis, Postgraduate Institute of Medicine, University of Colombo. Jayasekara, H. D. M. H., & Rajapaksa, L. C. (2006). An assessment of quality-of-life and satisfaction with care in patients diagnosed with some common cancers. Thesis, Postgraduate Institute of Medicine, University of Colombo.
5.
go back to reference Cull, A., Sprangers, M., Bjordal, K., Aaronson, N., West, K., & Bottomley, A. on behalf of the European Organisation for Research and Treatment of Cancer Quality of Life Study Group. (2002). EORTC quality of life group translation procedure (2nd ed.). Brussels: EORTC. Cull, A., Sprangers, M., Bjordal, K., Aaronson, N., West, K., & Bottomley, A. on behalf of the European Organisation for Research and Treatment of Cancer Quality of Life Study Group. (2002). EORTC quality of life group translation procedure (2nd ed.). Brussels: EORTC.
6.
go back to reference World Health Organization (WHO). (1992). International statistical classification of diseases and related health problems (10th revision). Geneva: WHO. World Health Organization (WHO). (1992). International statistical classification of diseases and related health problems (10th revision). Geneva: WHO.
7.
go back to reference Tabachnik, B. J., & Fidel, L. S. (1993). Using multivariate statistics. London: Harper & Row. Tabachnik, B. J., & Fidel, L. S. (1993). Using multivariate statistics. London: Harper & Row.
8.
go back to reference Aaronson, N. K., Ahmedzai, S., Bergman, B., et al. (1993). The European Organisation for Research and Treatment of Cancer QLQ-C30: A Quality-of-Life Instrument for use in International Clinical Trials in Oncology. Journal of the National Cancer Institute, 85, 365–376. doi:10.1093/jnci/85.5.365.PubMedCrossRef Aaronson, N. K., Ahmedzai, S., Bergman, B., et al. (1993). The European Organisation for Research and Treatment of Cancer QLQ-C30: A Quality-of-Life Instrument for use in International Clinical Trials in Oncology. Journal of the National Cancer Institute, 85, 365–376. doi:10.​1093/​jnci/​85.​5.​365.PubMedCrossRef
9.
go back to reference Fayers, P. M., Aaronson, N. K., Bjordal, K., Groenvold, M., Curran, D., & Bottomley, A., on behalf of the European Organisation for Research and Treatment of Cancer Quality of Life Study Group. (2001). The EORTC QLQ-C30 scoring manual (3rd ed.). Brussels: EORTC. Fayers, P. M., Aaronson, N. K., Bjordal, K., Groenvold, M., Curran, D., & Bottomley, A., on behalf of the European Organisation for Research and Treatment of Cancer Quality of Life Study Group. (2001). The EORTC QLQ-C30 scoring manual (3rd ed.). Brussels: EORTC.
10.
go back to reference Nie, N. H., Hull, C. H., Jenkins, J. G., Steinbrenner, K., & Bent, D. H. (1975). Statistical package for social sciences (SPSS). (2nd ed.). New York: McGraw-Hill. Nie, N. H., Hull, C. H., Jenkins, J. G., Steinbrenner, K., & Bent, D. H. (1975). Statistical package for social sciences (SPSS). (2nd ed.). New York: McGraw-Hill.
11.
go back to reference Hays, R. D., Hayashi, T., Carson, S., & Ware, J. E. (1988). User’s guide for the multitrait analysis program (MAP). Santa Monica, Carlifornia: Rand Corporation. Hays, R. D., Hayashi, T., Carson, S., & Ware, J. E. (1988). User’s guide for the multitrait analysis program (MAP). Santa Monica, Carlifornia: Rand Corporation.
13.
go back to reference Nunnally, J. C., & Bernstein, I. H. (1994). Psychometric theory. USA: McGraw-Hill. Nunnally, J. C., & Bernstein, I. H. (1994). Psychometric theory. USA: McGraw-Hill.
14.
go back to reference Kerlinger, F. N. (1978). Foundations of behavioural research. New York: McGraw-Hill. Kerlinger, F. N. (1978). Foundations of behavioural research. New York: McGraw-Hill.
15.
go back to reference Young, T., De Haes, H., Curran, D., Fayers, P., Brandberg, Y., Vanvooden, V. & Bottomley, A., on behalf of the European Organisation for Research and Treatment of Cancer (EORTC) Quality of Life Group and Quality of Life Unit. (2002). Guidelines for assessing quality of life in EORTC clinical trials (version 2). Brussels: EORTC. Young, T., De Haes, H., Curran, D., Fayers, P., Brandberg, Y., Vanvooden, V. & Bottomley, A., on behalf of the European Organisation for Research and Treatment of Cancer (EORTC) Quality of Life Group and Quality of Life Unit. (2002). Guidelines for assessing quality of life in EORTC clinical trials (version 2). Brussels: EORTC.
16.
go back to reference Chie, W. C., Chang, K. J., Huang, C. S., & Kuo, W. H. (2003). Quality of life of breast cancer patients in Taiwan: validation of the Taiwan Chinese version of the EORTC QLQ-C30 and EORTC QLQ-BR23. Psychooncology, 12(7), 729–735. doi:10.1002/pon.727.PubMedCrossRef Chie, W. C., Chang, K. J., Huang, C. S., & Kuo, W. H. (2003). Quality of life of breast cancer patients in Taiwan: validation of the Taiwan Chinese version of the EORTC QLQ-C30 and EORTC QLQ-BR23. Psychooncology, 12(7), 729–735. doi:10.​1002/​pon.​727.PubMedCrossRef
17.
go back to reference Montazeri, A., Harirchi, I., Vahdani, M., et al. (2000). The EORTC breast cancer-specific quality of life questionnaire (EORTC QLQ-BR23): Translation and validation study of the Iranian version. Quality of Life Research, 9(2), 177–184. doi:10.1023/A:1008918310251.PubMedCrossRef Montazeri, A., Harirchi, I., Vahdani, M., et al. (2000). The EORTC breast cancer-specific quality of life questionnaire (EORTC QLQ-BR23): Translation and validation study of the Iranian version. Quality of Life Research, 9(2), 177–184. doi:10.​1023/​A:​1008918310251.PubMedCrossRef
Metagegevens
Titel
Measuring breast cancer-specific health-related quality of life in South Asia: psychometric properties of the Sinhala version of the EORTC QLQ-BR23
Auteurs
Harindra Jayasekara
Lalini C. Rajapaksa
Yvonne Brandberg
Publicatiedatum
01-08-2008
Uitgeverij
Springer Netherlands
Gepubliceerd in
Quality of Life Research / Uitgave 6/2008
Print ISSN: 0962-9343
Elektronisch ISSN: 1573-2649
DOI
https://doi.org/10.1007/s11136-008-9359-9

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