Pedro Lopes Ferreira1, Lara Noronha Ferreira2, Luis Nobre Pereira3. 1. Faculdade de Economia. Universidade de Coimbra. Coimbra. Portugal. & Centro de Estudos e Investigação em Saúde da Universidade de Coimbra. Coimbra. Portugal. 2. Escola Superior de Gestão, Hotelaria e Turismo. Universidade do Algarve. Faro. Portugal. & Centro de Estudos e Investigação em Saúde da Universidade de Coimbra. Coimbra. Portugal. 3. Escola Superior de Gestão, Hotelaria e Turismo. Universidade do Algarve. Faro. Portugal. & Centro de Investigação sobre o Espaço e as Organizações. Universidade do Algarve. Faro. Portugal.
Abstract
INTRODUCTION: The EQ-5D allows the achievement of two essential components of any measure of health-related quality of life to be used in cost-utility economic evaluations: (i) a profile describing the health status in terms of domains or dimensions; and (ii) a numeric value associated with the health status described. AIM: The Portuguese version of the EQ-5D questionnaire was completed in 1998, based on guidelines set by the EuroQol Group, including translation and back translation procedures. Despite its wide use in Portugal, until now it had not yet been published studies that initially led to the Portuguese version and the guarantee of acceptability, reliability and validity. The purpose of this article is to document these first values relating to the Portuguese version of the EQ-5D. MATERIAL AND METHODS: We used three different samples: a first one with 1,500 individuals representative of the Portuguese population; a second with 140 individuals just intended for the reliability test; and a third sample with 643 individual patients with cataracts, asthma, chronic obstructive pulmonary disease, or rheumatoid arthritis. RESULTS: The acceptability was assessed by the number of missing responses. It was also found a marked ceiling effect, with a large part of the sample not reporting any problems in the dimensions of the EQ-5D. DISCUSSION: The construct validity was tested by examining the degree to which low values of EQ-5D were positively associated with increasing age, being female, and the sick, as well as the values of dimensions of the SF-36v2 scale. Convergent validity was based on correlations between EQ-5D values and other specific measures. The EQ-5D showed moderate to high correlations with other disease-specific measures of health status and health related quality of life. CONCLUSION: We can state that the Portuguese version of the EQ-5D has a good accessibility, reliability and validity in measuring health.
INTRODUCTION: The EQ-5D allows the achievement of two essential components of any measure of health-related quality of life to be used in cost-utility economic evaluations: (i) a profile describing the health status in terms of domains or dimensions; and (ii) a numeric value associated with the health status described. AIM: The Portuguese version of the EQ-5D questionnaire was completed in 1998, based on guidelines set by the EuroQol Group, including translation and back translation procedures. Despite its wide use in Portugal, until now it had not yet been published studies that initially led to the Portuguese version and the guarantee of acceptability, reliability and validity. The purpose of this article is to document these first values relating to the Portuguese version of the EQ-5D. MATERIAL AND METHODS: We used three different samples: a first one with 1,500 individuals representative of the Portuguese population; a second with 140 individuals just intended for the reliability test; and a third sample with 643 individual patients with cataracts, asthma, chronic obstructive pulmonary disease, or rheumatoid arthritis. RESULTS: The acceptability was assessed by the number of missing responses. It was also found a marked ceiling effect, with a large part of the sample not reporting any problems in the dimensions of the EQ-5D. DISCUSSION: The construct validity was tested by examining the degree to which low values of EQ-5D were positively associated with increasing age, being female, and the sick, as well as the values of dimensions of the SF-36v2 scale. Convergent validity was based on correlations between EQ-5D values and other specific measures. The EQ-5D showed moderate to high correlations with other disease-specific measures of health status and health related quality of life. CONCLUSION: We can state that the Portuguese version of the EQ-5D has a good accessibility, reliability and validity in measuring health.
Authors: Silsam Napolitano Alberto; Juliana Hotta Ansai; Ana Luísa Janducci; João Vitor Businaro Florido; Areta Dames Cachapuz Novaes; Maria Joana Duarte Caetano; Paulo Giusti Rossi; Larissa Riani Costa Tavares; Stephen Ronald Lord; Karina Gramani-Say Journal: JMIR Res Protoc Date: 2022-06-13
Authors: Pedro L Ferreira; Sónia P Gonçalves; Lara N Ferreira; Luis N Pereira; Patrícia Antunes; Nélia Gouveia; Ana Rodrigues; Helena Canhão; Jaime Branco Journal: Rheumatol Int Date: 2016-07-04 Impact factor: 2.631
Authors: João Soares Felício; Ana Carolina Contente Braga de Souza; Camila Cavalcante Koury; João Felício Abrahão Neto; Karem Barbosa Miléo; Flávia Marques Santos; Ana Regina Bastos Motta; Denisson Dias Silva; Thaís Pontes Arbage; Carolina Tavares Carvalho; Hana Andrade de Rider Brito; Elizabeth Sumi Yamada; Roberta Arnoldi Cobas; Alessandra Matheus; Lucianne Tannus; Catia Cristina Sousa Palma; Leticia Japiassu; João Regis Ivar Carneiro; Melanie Rodacki; Lenita Zajdenverg; Neuza Braga Campos de Araújo; Marilena de Menezes Cordeiro; Jorge Luiz Luescher; Renata Szundy Berardo; Marcia Nery; Catarina Cani; Maria do Carmo Arruda Marques; Luiz Eduardo Calliari; Renata Maria de Noronha; Thais Della Manna; Roberta Savoldelli; Fernanda Garcia Penha; Milton Cesar Foss; Maria Cristina Foss-Freitas; Antonio Carlos Pires; Fernando Cesar Robles; Carlos Antonio Negrato; Maria de Fatima Guedes; Sergio Atala Dib; Patricia Dualib; Saulo Cavalcanti da Silva; Janice Sepúlveda; Emerson Sampaio; Rosangela Roginski Rea; Ana Cristina Ravazzani de Almeida Faria; Balduino Tschiedel; Suzana Lavigne; Gustavo Adolfo Cardozo; Mirela Azevedo; Luis Henrique Canani; Alessandra Teixeira Zucatti; Marisa Helena Cesar Coral; Daniela Aline Pereira; Luiz Antonio de Araujo; Hermelinda Cordeiro Pedrosa; Monica Tolentino; Flaviene Alves Prado; Nelson Rassi; Leticia Bretones de Araujo; Reine Marie Chaves Fonseca; Alexis Dourado Guedes; Odelisa Silva de Mattos; Manuel Faria; Rossana Azulay; Adriana Costa E Forti; Cristina Figueiredo Sampaio Façanha; Renan Montenegro Junior; Ana Paula Montenegro; Naira Horta Melo; Karla Freire Rezende; Alberto Ramos; Deborah Laredo Jezini; Marilia Brito Gomes Journal: Diabetol Metab Syndr Date: 2015-10-06 Impact factor: 3.320