Willingness to pay per quality-adjusted life year: is one threshold enough for decision-making?: results from a study in patients with chronic prostatitis.
Med Care
; 49(3): 267-72, 2011 Mar.
Article
en En
| MEDLINE
| ID: mdl-21224742
ABSTRACT
OBJECTIVE:
To estimate the willingness to pay (WTP) per quality-adjusted life year (QALY) ratio with the stated preference data and compare the results obtained between chronic prostatitis (CP) patients and general population (GP).METHODS:
WTP per QALY was calculated with the subjects' own health-related utility and the WTP value. Two widely used preference-based health-related quality of life instruments, EuroQol (EQ-5D) and Short Form 6D (SF-6D), were used to elicit utility for participants' own health. The monthly WTP values for moving from participants' current health to a perfect health were elicited using closed-ended iterative bidding contingent valuation method.RESULTS:
A total of 268 CP patients and 364 participants from GP completed the questionnaire. We obtained 4 WTP/QALY ratios ranging from $4700 to $7400, which is close to the lower bound of local gross domestic product per capita, a threshold proposed by World Health Organization. Nevertheless, these values were lower than other proposed thresholds and published empirical researches on diseases with mortality risk. Furthermore, the WTP/QALY ratios from the GP were significantly lower than those from the CP patients, and different determinants were associated with the within group variation identified by multiple linear regression.CONCLUSIONS:
Preference elicitation methods are acceptable and feasible in the socio-cultural context of an Asian environment and the calculation of WTP/QALY ratio produced meaningful answers. The necessity of considering the QALY type or disease-specific QALY in estimating WTP/QALY ratio was highlighted and 1 to 3 times of gross domestic product/capita recommended by World Health Organization could potentially serve as a benchmark for threshold in this Asian context.
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Prostatitis
Tipo de estudio:
Observational_studies
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Prevalence_studies
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Prognostic_studies
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Risk_factors_studies
Límite:
Adult
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Humans
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Male
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Middle aged
País como asunto:
Asia
Idioma:
En
Año:
2011
Tipo del documento:
Article