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- Borgquist, Lars, et al.
(författare)
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The Relationship between Health-state Utilities and the SF-12 in a General Population
- 1999
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Ingår i: Medical decision making. - : SAGE. - 1552-681X .- 0272-989X. ; 19:2, s. 128-140
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Tidskriftsartikel (refereegranskat)abstract
- It would be a major advance if quality-of-life instruments could be translated into health- state utilities. The aim with this study was to investigate the relationship between the SF-12 and health-state utilities, based on responses to a postal questionnaire sent to a random sample of 8,000 inhabitants, aged 20-84 years, in the general population. The questionnaire included the SF-12, a rating-scale (RS) question, and a time-tradeoff (TTO) question; the response rate was 68%. Age, gender, and the 12 items of the SF- 12 were used as explanatory variables in a linear regression analysis of the health- state utilities. The regression models explained about 50% of the variance in the RS answers and about 25% of the variance in the TTO answers. Most of the SF-12 items were related to the health-state utilities in the expected ways, with especially strong results for the RS method. The results suggest that the SF-12 can be converted to health-state utilities, but that further work is needed to reliably estimate the conversion function. Key words: health status; SF-12; rating scale; time-tradeoff; health-related quality of life; health-state utilities; population study. (Med Decis Making 1999;19:128- 140)
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| 2. |
- Lundberg, Lena, et al.
(författare)
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Effects of user charges on the use of prescription medicines in different socio-economic groups
- 1998
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Ingår i: Health policy (Amsterdam). - : Elsevier Ireland Ltd. - 1872-6054 .- 0168-8510. ; 44:2, s. 123-134
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Tidskriftsartikel (refereegranskat)abstract
- This study examined the sensitivity towards increases in user charges for different types of drugs and among different socio-economic groups. It was based on responses by 2008 consumers of prescription drugs to a self-administered postal questionnaire sent to a random sample of 8000 inhabitants in Uppsala County in Sweden. The questionnaire included a question about whether the respondents would use fewer prescription drugs if the user charges increased by a specific amount. The increase in user charges was varied between 9 and 150% in five different subsamples. Logistic regression analysis was used to estimate the probability that a respondent would reduce consumption of prescription drugs as a function of the size of the user charges increase, socio-economic characteristics and the type of drug used. Results showed that the price sensitivity decreased with increasing age, income, education and self-rated health status. Price sensitivity was highest for antitussives and lowest for climacteric drugs. If the user charges doubled, 40% of antitussives users would reduce their consumption whereas only 11% of climacteric drugs users would reduce their consumption. It is concluded that sensitivity to increases in user charges varied greatly between different types of drugs and between socio-economic groups. The young, those with poor health status, low education and low income are most likely to decrease consumption of prescription drugs when user charges increase.
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