How does the EQ-5D perform when measuring quality of life in dementia against two other dementia-specific outcome measures?
Qual Life Res
; 25(1): 45-9, 2016 Jan.
Article
em En
| MEDLINE
| ID: mdl-26163146
ABSTRACT
PURPOSE:
This study aimed to assess and compare the psychometric performance of the EQ-5D in relation to other dementia-specific measures, the QoL-AD and DEMQoL, within a psychosocial intervention study.METHODS:
Two hundred and seventy-two people with dementia completed the EQ-5D, DEMQoL and QoL-AD. Convergent and discriminant validity of the measures were assessed, and inter-rater reliability was tested by comparing the self-reported and proxy scores of the measures. Internal consistency was tested using Cronbach's alpha.RESULTS:
Results satisfy convergent validity amongst the three outcome measures. EQ-5D, DEMQoL and QoL-AD total scores were shown to be significantly correlated with each other (p < 0.001) in both participants with dementia and proxy reports. Results also satisfied discriminant validity for participant EQ-5D, DEMQoL and QoL-AD total scores. In relation to reliability between self and proxy scores, the EQ-5D showed higher reliability scores between participant and proxy total scores for mild and moderate level of cognitive impairment and performed better than the dementia-specific measures. Reliability assessed through Cronbach's alpha was satisfactory, indicating adequate internal consistency of all three measures.CONCLUSIONS:
The results suggest that the EQ-5D might have advantages over other dementia-specific measures, and it could be used routinely and as a stand-alone measure of quality of life in dementia research.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Psicometria
/
Qualidade de Vida
/
Inquéritos e Questionários
/
Demência
Tipo de estudo:
Qualitative_research
Limite:
Aged
/
Aged80
/
Female
/
Humans
/
Male
/
Middle aged
Idioma:
En
Revista:
Qual Life Res
Assunto da revista:
REABILITACAO
/
TERAPEUTICA
Ano de publicação:
2016
Tipo de documento:
Article
País de afiliação:
Reino Unido