Cultural validation of the post-Liver transplant quality of life (pLTQ) questionnaire for the Brazilian population.
Ann Hepatol
; 15(3): 377-85, 2016.
Article
em En
| MEDLINE
| ID: mdl-27049491
ABSTRACT
BACKGROUND AND RATIONALE The post-Liver Transplant Quality of Life (pLTQ) questionnaire, developed in the United States, is a disease-targeted instrument designed to evaluate health-related quality of life (HRQoL) in liver transplant recipients. Our study sought to validate a version of the pLTQ for use in the Brazilian population. Translation and cross-cultural adaptation were carried out in accordance with international standard practices for questionnaire validation. Validity was measured by means of convergent validity (correlations between pLTQ domains and WHOQOL-Bref domains). Reliability was assessed by measurement of internal consistency (Cronbach's alpha coefficient), reproducibility (intraclass correlation coefficient), sensitivity to change (effect size), and floor and ceiling effects. RESULTS:
The study sample comprised 160 liver transplant recipients, with a mean age of 56.9 ± 10.4 years, treated at a tertiary hospital in Southern Brazil. The sample was largely male (62.5%), and the predominant indication for liver transplant was hepatocellular carcinoma (49.4%). Only two questionnaire items were modified during the translation and cross-cultural validation stage. The mean total pLTQ score was 5.58 ± 0.9, with < 20% floor/ceiling effect. Correlations between pLTQ and WHOQOL-Bref domains were acceptable (r = 0.37-0.40). For similar dimensions, the correlations between WHOQOL-Bref and pLTQ were statistically significant (p ≤ 0.001). Cronbach's alpha for the total score was 0.91 (95% CI 0.89-0.93), with a range of 0.51 to 0.77 across domains. Reproducibility was 0.90, and sensitivity to change was 0.84.CONCLUSION:
In conclusion, the Brazilian Portuguese versión of the pLTQ exhibited good psychometric performance, suggesting that it can be a useful tool in the Brazilian cultural context.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Qualidade de Vida
/
Inquéritos e Questionários
/
Transplante de Fígado
/
Características Culturais
/
Avaliação de Resultados da Assistência ao Paciente
Tipo de estudo:
Prognostic_studies
Limite:
Aged
/
Female
/
Humans
/
Male
/
Middle aged
País/Região como assunto:
America do sul
/
Brasil
Idioma:
En
Revista:
Ann Hepatol
Assunto da revista:
GASTROENTEROLOGIA
Ano de publicação:
2016
Tipo de documento:
Article
País de afiliação:
Brasil