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Quality of Life Research
Gepubliceerd in: Quality of Life Research 6/2017

25-01-2017

Health literacy and logical inconsistencies in valuations of hypothetical health states: results from the Canadian EQ-5D-5L valuation study

Auteurs: Fatima Al Sayah, Jeffrey A. Johnson, Arto Ohinmaa, Feng Xie, Nick Bansback, On behalf of the Canadian EQ-5D-5L Valuation Study Group

Gepubliceerd in: Quality of Life Research | Uitgave 6/2017

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Abstract

Objectives

To examine the association of health literacy with logical inconsistencies in time trade-off valuations of hypothetical health states described by the EQ-5D-5L classification system.

Methods

Data from the EQ-5D-5L Canadian Valuation study were used. Health literacy was assessed using the Brief Health Literacy Screen. A health state valuation was considered logically inconsistent if a respondent gave the same or lower value for a very mild health state compared to the value given to 55555, or gave the same or lower value for a very mild health state compared to value assigned to the majority of the health states that are dominated by the very mild health state.

Results

Average age of respondents (N = 1209) was 48 (SD = 17) years, 45% were male, 7% reported inadequate health literacy, and 11% had a logical inconsistency. In adjusted analysis, participants with inadequate health literacy were 2.2 (95%CI: 1.2, 4.0; p = 0.014) times more likely to provide an inconsistent valuation compared to those with adequate health literacy. More specifically, those who had problems in “understanding written information” and “reading health information” were more likely to have a logical inconsistency compared to those who did not. However, lacking “confidence in completing medical forms” was not associated with logical inconsistencies.

Conclusions

Health literacy was associated with logical inconsistencies in valuations of hypothetical health states described by the EQ-5D-5L classification system. Valuations studies should consider assessing health literacy, and explore better ways to introduce the valuation tasks or use simpler approaches of health preferences elicitation for individuals with inadequate health literacy.
vorige artikel Longitudinal measurement invariance of the Dutch Outcome Questionnaire-45 in a clinical sample
volgende artikel Framing of mobility items: a source of poor agreement between preference-based health-related quality of life instruments in a population of individuals receiving assisted ventilation
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Metagegevens
Titel
Health literacy and logical inconsistencies in valuations of hypothetical health states: results from the Canadian EQ-5D-5L valuation study
Auteurs
Fatima Al Sayah
Jeffrey A. Johnson
Arto Ohinmaa
Feng Xie
Nick Bansback
On behalf of the Canadian EQ-5D-5L Valuation Study Group
Publicatiedatum
25-01-2017
Uitgeverij
Springer International Publishing
Gepubliceerd in
Quality of Life Research / Uitgave 6/2017
Print ISSN: 0962-9343
Elektronisch ISSN: 1573-2649
DOI
https://doi.org/10.1007/s11136-016-1495-z

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