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Quality of Life Research
Gepubliceerd in: Quality of Life Research 5/2018

28-02-2018

Health state utilities and subjective well-being among psoriasis vulgaris patients in mainland China

Auteurs: Liu Liu, Shunping Li, Yue Zhao, Jianglin Zhang, Gang Chen

Gepubliceerd in: Quality of Life Research | Uitgave 5/2018

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Abstract

Purpose

To investigate the validity of direct and indirect health state utility (HSU) and subjective well-being measures in psoriasis vulgaris patients.

Methods

A convenience sampling framework was used to successively recruit patients with psoriasis vulgaris from the outpatient clinics of a tertiary hospital in Changsha, Central South China. Participants completed time trade-off (TTO), standard gamble (SG), the five-level EQ-5D (EQ-5D-5L), the WHO-5 well-being index, and the psoriasis disability index (PDI). The concurrent and known-groups validity of HSUs and well-being index in psoriasis patients were firstly studied. The agreements among HSUs and the relationship between HSU and well-being measures were further explored.

Results

A valid sample of 343 patients was analyzed. Mean HSU and well-being scores elicited from the EQ-5D-5L/TTO/SG and WHO-5 were 0.90/0.85/0.88 and 13.69, respectively. The Spearman correlation (concurrent validity) was the strongest between PDI and WHO-5 (r = 0.45), followed by with EQ-5D-5L (0.38), SG (r = 0.20), and the TTO (r = 0.18). The pairwise intraclass correlation coefficients among the three HSU measures were < 0.30. The known-groups validity was evident in all measures except for the SG. Exploratory factor analysis further suggests a complementary relationship between the EQ-5D-5L and WHO-5.

Conclusions

There is a poor agreement between direct and indirect methods on measuring HSU with psoriasis vulgaris. Results from this study recommend that the EQ-5D-5L is the most preferred method to elicit HSU from psoriasis vulgaris patients in mainland China. It is important to further analyze the subjective well-being in addition to the HSU to fully understand the impact of psoriasis.
vorige artikel Comparing the validity and responsiveness of the EQ-5D-5L to the Oxford hip and knee scores and SF-12 in osteoarthritis patients 1 year following total joint replacement
volgende artikel The impact of extended half-life versus conventional factor product on hemophilia caregiver burden
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Metagegevens
Titel
Health state utilities and subjective well-being among psoriasis vulgaris patients in mainland China
Auteurs
Liu Liu
Shunping Li
Yue Zhao
Jianglin Zhang
Gang Chen
Publicatiedatum
28-02-2018
Uitgeverij
Springer International Publishing
Gepubliceerd in
Quality of Life Research / Uitgave 5/2018
Print ISSN: 0962-9343
Elektronisch ISSN: 1573-2649
DOI
https://doi.org/10.1007/s11136-018-1819-2

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