Yang, Y and Tsuchiya, A and Brazier, J and Young, Tracey A. (2007): Estimating a preference-based single index from the Asthma Quality of Life Questionnaire (AQLQ).
Download (271kB) | Preview
This paper presents a study to estimate a preference-based single index from the Asthma Quality of Life Questionnaire (AQLQ). Based on the AQL-5D which is a health classification system directly derived from AQLQ, 98 health states were valued by a sample of 307 members of the UK general population. Models were estimated to predict all possible 3125 health states defined by the AQL-5D and compared using a set of criteria. The mean model of main effects was recommended of preferable prediction ability and logically consistent and significant coefficients for levels of dimensions. However, there are concerns over condition-specific valuation issues, such as presenting asthma information to the general public and the choice of condition specific full health as the upper anchor for TTO valuation.
|Item Type:||MPRA Paper|
|Original Title:||Estimating a preference-based single index from the Asthma Quality of Life Questionnaire (AQLQ)|
|Keywords:||AQL-5D; health state valuation; condition-specific; time-trade-off; asthma|
|Subjects:||I - Health, Education, and Welfare > I3 - Welfare, Well-Being, and Poverty > I31 - General Welfare, Well-Being
I - Health, Education, and Welfare > I1 - Health > I19 - Other
|Depositing User:||Sarah McEvoy|
|Date Deposited:||24. Mar 2011 22:10|
|Last Modified:||03. Mar 2013 03:53|
Anderson JP, Kaplan RM, Berry CC, et al (1989). Interday reliability of function assessment for a health-status measure - the Quality of Well-being Scale. Medical Care 27(11):1076-84.
Brazier J, Roberts J, Deverill M (2002). The estimation of a utility based algorithm from the SF-36 Health Survey. Journal of Health Economics 21:271-92.
Brazier JE, Czoski-Murray C, Roberts J, Brown M, Symonds T, Kelleher C (2007). Estimation of a preference-based index from a condition specific measure: the King's Health Questionnaire. Medical Decision Making (in press).
Brazier JE, Ratcliffe J, Tsuchiya A, Solomon J (2007). Measuring and valuing health for economic evaluation. Oxford: Oxford University Press.
Dolan P (1997). Modelling valuation for Euroqol health states. Medical Care 35:351-63.
Dolan P, Gudex C, Kind P (1996). Valuing health states: A comparison of methods. Journal of Health Economics 2:209-32.
Dowie J (2002). Decision validity should determine whether a generic or condition-specific HRQOL measure is used in health care decisions. Health Economics 11:1-8.
Eccles M, Grimshaw J, Steen N, Parkin D, Purves I, McColl E, et al (2000). The design and analysis of a randomized controlled trial to evaluate computerized decision support in primary care: the COGENT study. Family Practice 17(2):180-6.
Gudex C (1994). Time trade-off user manual: props and self-completion methods. York: Centre for Health Economics.
Juniper EF, Guyatt GH, Ferrie PJ, Griffith LE (1993). Measuring quality of life in asthma. American Review of Respiratory Disease 147:832-8.
Juniper EF, Buist AS, Cox FM, Ferrie PJ, King DR (1999). Validation of a standardized version of the Asthma Quality of Life Questionnaire. Chest 115(5):1265-70.
Revicki DA, Leidy NK, et al (1998). Development and preliminary validation of the multiattibute Rhinitis Symptom Utility Index. Quality of Life Research 7:693-702.
Revicki DA, Leidy NK, et al (1998). Integrating patient preferences into health outcomes assessment: the multiattribute Asthma Symptom Utility Index. Chest 114:998-1007.
Roberts J, Dolan P (2004). To what extent do people prefer health states with higher values? A note on evidence from the EQ-5D valuation set. Health Economics 13(7):733-7.
Stolk EA, Busschbach JJV (2003). Validity and feasibility of the use of condition-specific outcome measures in economic evaluation. Quality of Life Research 12:363-71.
Torrance EA, Kereseci MA, et al (2004). Development and initial validation of a new preference-based disease-specific health related quality of life instrument for erectile function. Quality of Life Research 13:349-59.
Young T, Yang Y, Brazier J, Tsuchiya A (2005). Using Rasch analysis to aid the construction of preference based measures from existing quality of life instruments. Paper presented at the Health Economists’ Study Group meeting, Newcastle.