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Gepubliceerd in: Quality of Life Research 8/2014

01-10-2014

Modelling utility weights for the Assessment of Quality of Life (AQoL)-8D

Auteurs: Jeff Richardson, Kompal Sinha, Angelo Iezzi, Munir A. Khan

Gepubliceerd in: Quality of Life Research | Uitgave 8/2014

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Abstract

Purpose

The objective of this paper is to describe the four-stage methodology used to obtain utility scores for the Assessment of Quality of Life (AQoL)-8D, a 35-item 8 dimension multi-attribute utility instrument, which was created to achieve a high degree of sensitivity to psycho-social health.

Methods

Data for the analyses were obtained from a representative group of 347 members of the Australian public and from 323 mental health patients each of whom provided VAS and time trade-off valuations of multiple health states. Data were used initially to create multiplicative scoring algorithms for each of the instrument’s 8 dimensions and for the overall instrument. Each of the algorithms was then subject to a second-stage econometric ‘correction’.

Results

Algorithms were successfully created for each of the AQoL-8D’s dimensions, for physical and mental ‘super-dimensions’ and for the overall AQoL-8D instrument. The final AQoL-8D algorithm has good predictive power with respect to the TTO valuations.

Conclusions

The AQoL-8D is a suitable instrument for researchers conducting cost utility analyses generally but, in particular, for the analysis of services affecting psycho-social health.
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Literatuur
1.
go back to reference Brazier, J., Ratcliffe, J., Salomon, J., & Tsuchiya, A. (2007). Measuring and valuing health benefits for economic evaluation. Oxford: Oxford University Press. Brazier, J., Ratcliffe, J., Salomon, J., & Tsuchiya, A. (2007). Measuring and valuing health benefits for economic evaluation. Oxford: Oxford University Press.
2.
go back to reference Richardson, J., McKie, J., & Bariola, E. (2014). Multi attribute utility instruments and their use. In A. J. Culyer (Ed.), Encyclopedia of Health Economics. San Diego: Elsevier Science. Richardson, J., McKie, J., & Bariola, E. (2014). Multi attribute utility instruments and their use. In A. J. Culyer (Ed.), Encyclopedia of Health Economics. San Diego: Elsevier Science.
3.
go back to reference Moock, J., & Kohlmann, T. (2008). Comparing preference-based quality-of-life measures: Results from rehabilitation patients with musculoskeletal, cardiovascular, or psychosomatic disorders. Quality of Life Research, 17, 485–495. Moock, J., & Kohlmann, T. (2008). Comparing preference-based quality-of-life measures: Results from rehabilitation patients with musculoskeletal, cardiovascular, or psychosomatic disorders. Quality of Life Research, 17, 485–495.
4.
go back to reference Fryback, D. G., Palta, M., Cherepanov, D., Bolt, D., & Kim, J. (2010). Comparison of 5 health related quality of life indexes using item response theory analysis. Medical Decision Making, 30, 5–15.PubMedCentralPubMedCrossRef Fryback, D. G., Palta, M., Cherepanov, D., Bolt, D., & Kim, J. (2010). Comparison of 5 health related quality of life indexes using item response theory analysis. Medical Decision Making, 30, 5–15.PubMedCentralPubMedCrossRef
5.
go back to reference Dolan, P., Lee, H., & Peasgood, T. (2012). Losing sight of the wood for the trees: Some issues in describing and valuing health, and another possible approach. Pharmacoeconomics, 30, 1035–1049.PubMedCrossRef Dolan, P., Lee, H., & Peasgood, T. (2012). Losing sight of the wood for the trees: Some issues in describing and valuing health, and another possible approach. Pharmacoeconomics, 30, 1035–1049.PubMedCrossRef
6.
go back to reference Bowling, A. (1995). What things are important in people’s lives? A survey of the public’s judgements to inform scales of health related quality of life. Social Science and Medicine, 41, 1447–1462.PubMedCrossRef Bowling, A. (1995). What things are important in people’s lives? A survey of the public’s judgements to inform scales of health related quality of life. Social Science and Medicine, 41, 1447–1462.PubMedCrossRef
8.
go back to reference Richardson, J., Day, N. A., Peacock, S., & Iezzi, A. (2004). Measurement of the quality of life for economic evaluation and the Assessment of Quality of Life (AQoL) mark 2 instrument. Australian Economic Review, 37, 62–88.CrossRef Richardson, J., Day, N. A., Peacock, S., & Iezzi, A. (2004). Measurement of the quality of life for economic evaluation and the Assessment of Quality of Life (AQoL) mark 2 instrument. Australian Economic Review, 37, 62–88.CrossRef
9.
go back to reference Richardson, J., Elsworth, G., Iezzi, A., Khan, M. A., Mihalopoulos, C., Schweitzer, I., et al. (2011). Increasing the sensitivity of the AQoL inventory for evaluation of interventions affecting mental health, research paper 61. Melbourne: Centre for Health Economics, Monash University. Richardson, J., Elsworth, G., Iezzi, A., Khan, M. A., Mihalopoulos, C., Schweitzer, I., et al. (2011). Increasing the sensitivity of the AQoL inventory for evaluation of interventions affecting mental health, research paper 61. Melbourne: Centre for Health Economics, Monash University.
10.
go back to reference McDonald, R. P. (2005). Semiconfirmatory factor analysis: The example of anxiety and depression. Structural Equation Modeling: A Multidisciplinary Journal, 12, 163–172.CrossRef McDonald, R. P. (2005). Semiconfirmatory factor analysis: The example of anxiety and depression. Structural Equation Modeling: A Multidisciplinary Journal, 12, 163–172.CrossRef
11.
go back to reference Sintonen, H., & Pekurinen, M. (1989). A generic 15 dimensional measure of health-related quality of life (15D). Journal of Social Medicine, 26, 85–96. Sintonen, H., & Pekurinen, M. (1989). A generic 15 dimensional measure of health-related quality of life (15D). Journal of Social Medicine, 26, 85–96.
12.
go back to reference Torrance, G., Boyle, M., & Horwood, S. (1982). Application of multi-attribute utility theory to measure social preferences for health status. Operations Research, 30, 1043–1069.PubMedCrossRef Torrance, G., Boyle, M., & Horwood, S. (1982). Application of multi-attribute utility theory to measure social preferences for health status. Operations Research, 30, 1043–1069.PubMedCrossRef
13.
go back to reference Feeny, D., Furlong, W., & Torrance, G. (1996). Health Utilities Index Mark 2 and Mark 3 (HUI 2/3) 15 item questionnaire for self-administered, self assessed usual health status. Hamilton, ON: Centre for Health Economics and Policy Analysis, McMaster University. Feeny, D., Furlong, W., & Torrance, G. (1996). Health Utilities Index Mark 2 and Mark 3 (HUI 2/3) 15 item questionnaire for self-administered, self assessed usual health status. Hamilton, ON: Centre for Health Economics and Policy Analysis, McMaster University.
14.
go back to reference Feeny, D., Furlong, W., Torrance, G., Goldsmith, C., Zhu, Z., DePauw, S., et al. (2002). Multi attribute and single attribute utility functions for the Health Utilities Index Mark 3 system. Medical Care, 40, 113–128.PubMedCrossRef Feeny, D., Furlong, W., Torrance, G., Goldsmith, C., Zhu, Z., DePauw, S., et al. (2002). Multi attribute and single attribute utility functions for the Health Utilities Index Mark 3 system. Medical Care, 40, 113–128.PubMedCrossRef
15.
go back to reference Hawthorne, G., Richardson, J., & Osborne, R. (1999). The Assessment of Quality of Life (AQoL) instrument: A psychometric measure of health related quality of life. Quality of Life Research, 8, 209–224.PubMedCrossRef Hawthorne, G., Richardson, J., & Osborne, R. (1999). The Assessment of Quality of Life (AQoL) instrument: A psychometric measure of health related quality of life. Quality of Life Research, 8, 209–224.PubMedCrossRef
16.
go back to reference Von Winterfeldt, D., & Edwards, W. (1986). Decision analysis and behavioral research. Cambridge: Cambridge University Press. Von Winterfeldt, D., & Edwards, W. (1986). Decision analysis and behavioral research. Cambridge: Cambridge University Press.
17.
18.
go back to reference Brazier, J., Roberts, J., & Deverill, M. (2002). The estimation of a preference-based measure of health from the SF-36. Journal of Health Economics, 21, 271–292.PubMedCrossRef Brazier, J., Roberts, J., & Deverill, M. (2002). The estimation of a preference-based measure of health from the SF-36. Journal of Health Economics, 21, 271–292.PubMedCrossRef
19.
go back to reference Cronbach, L. J. (1971). Test validation. In R. L. Thorndike (Ed.), Educational measurement (2nd ed.). Washington, DC: American Council on Education. Cronbach, L. J. (1971). Test validation. In R. L. Thorndike (Ed.), Educational measurement (2nd ed.). Washington, DC: American Council on Education.
20.
go back to reference Streiner, D., & Norman, G. R. (2003). Health measurement scales: A practical guide to their development and use. Oxford: Oxford University Press. Streiner, D., & Norman, G. R. (2003). Health measurement scales: A practical guide to their development and use. Oxford: Oxford University Press.
21.
go back to reference Iezzi, A., & Richardson, J. (2009). Measuring quality of life at the CHE: Description of instruments, interview props and their administration, research paper 41. Melbourne: Centre for Health Economics, Monash University. Iezzi, A., & Richardson, J. (2009). Measuring quality of life at the CHE: Description of instruments, interview props and their administration, research paper 41. Melbourne: Centre for Health Economics, Monash University.
22.
go back to reference Richardson, J., Iezzi, A., Khan, M. A., Sinha, K., Mihalopoulos, C., Herrman, H., et al. (2009). Data used in the development of the AQoL-8D (PsyQoL) quality of life instrument, research paper 40. Melbourne: Centre for Health Economics, Monash University. Richardson, J., Iezzi, A., Khan, M. A., Sinha, K., Mihalopoulos, C., Herrman, H., et al. (2009). Data used in the development of the AQoL-8D (PsyQoL) quality of life instrument, research paper 40. Melbourne: Centre for Health Economics, Monash University.
23.
go back to reference Hoinville, G., Jowell, R., Airey, C., Brook, J., Courtenay, G., Hedges, B., et al. (1977). Survey research practice. London: Heinemann Educational Books. Hoinville, G., Jowell, R., Airey, C., Brook, J., Courtenay, G., Hedges, B., et al. (1977). Survey research practice. London: Heinemann Educational Books.
26.
go back to reference Richardson, J., Iezzi, A., Khan, M. A., & Maxwell, A. (2013). Validity and reliability of the Assessment of Quality of Life (AQoL-8D) multi attribute utility instrument. The Patient: Patient-Centered Outcomes Research. doi:10.1007/s40271-013-0036-x. Richardson, J., Iezzi, A., Khan, M. A., & Maxwell, A. (2013). Validity and reliability of the Assessment of Quality of Life (AQoL-8D) multi attribute utility instrument. The Patient: Patient-Centered Outcomes Research. doi:10.​1007/​s40271-013-0036-x.
27.
go back to reference Richardson, J., Khan, M. A., Chen, G., Iezzi, A., & Maxwell, A. (2012). Population norms and Australian profile using the Assessment of Quality of Life (AQoL) 8D utility instrument, research paper 72. Melbourne: Centre for Health Economics, Monash University. Richardson, J., Khan, M. A., Chen, G., Iezzi, A., & Maxwell, A. (2012). Population norms and Australian profile using the Assessment of Quality of Life (AQoL) 8D utility instrument, research paper 72. Melbourne: Centre for Health Economics, Monash University.
Metagegevens
Titel
Modelling utility weights for the Assessment of Quality of Life (AQoL)-8D
Auteurs
Jeff Richardson
Kompal Sinha
Angelo Iezzi
Munir A. Khan
Publicatiedatum
01-10-2014
Uitgeverij
Springer International Publishing
Gepubliceerd in
Quality of Life Research / Uitgave 8/2014
Print ISSN: 0962-9343
Elektronisch ISSN: 1573-2649
DOI
https://doi.org/10.1007/s11136-014-0686-8

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