BACKGROUND: At the beginning of the 1990s, the World Health Organization (WHO) developed a project in order to create a cross-cultural instrument of quality of life assessment: the World Health Organization Quality of Life (WHOQOL). PURPOSE: This paper describes the development of the European Portuguese version of the WHOQOL-100, according to the methodology recommended by the WHO. METHOD: Special attention is given to the qualitative pilot study, which led to the development of the Portuguese Facet [Political P], and to the empirical pilot study and the psychometric studies, based on the application of the Portuguese version of the instrument to a sample of 315 subjects from the general population and 289 patients. The assessment protocol also included the Beck Depression Inventory and the Brief Symptom Inventory. RESULTS: The Portuguese version of WHOQOL-100 showed acceptable internal consistency (alpha range 0.84-0.94) and test-retest reliability in all domains (r range 0.67-0.86). Discriminant validity was significant for all domains, except in Spirituality. Convergent validity with the Beck Depression Inventory and the Brief Symptom Inventory was satisfactory for most domains. CONCLUSION: The WHOQOL showed good psychometric characteristics, suggesting that the Portuguese version of WHOQOL is valid and reliable in the assessment of quality of life in Portugal.
BACKGROUND: At the beginning of the 1990s, the World Health Organization (WHO) developed a project in order to create a cross-cultural instrument of quality of life assessment: the World Health Organization Quality of Life (WHOQOL). PURPOSE: This paper describes the development of the European Portuguese version of the WHOQOL-100, according to the methodology recommended by the WHO. METHOD: Special attention is given to the qualitative pilot study, which led to the development of the Portuguese Facet [Political P], and to the empirical pilot study and the psychometric studies, based on the application of the Portuguese version of the instrument to a sample of 315 subjects from the general population and 289 patients. The assessment protocol also included the Beck Depression Inventory and the Brief Symptom Inventory. RESULTS: The Portuguese version of WHOQOL-100 showed acceptable internal consistency (alpha range 0.84-0.94) and test-retest reliability in all domains (r range 0.67-0.86). Discriminant validity was significant for all domains, except in Spirituality. Convergent validity with the Beck Depression Inventory and the Brief Symptom Inventory was satisfactory for most domains. CONCLUSION: The WHOQOL showed good psychometric characteristics, suggesting that the Portuguese version of WHOQOL is valid and reliable in the assessment of quality of life in Portugal.
Authors: Guannan Bai; Ida J Korfage; Esther Hafkamp-de Groen; Vincent W V Jaddoe; Eva Mautner; Hein Raat Journal: PLoS One Date: 2016-11-04 Impact factor: 3.240
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Authors: José Pedro Ferreira; Ana Teixeira; João Serrano; Carlos Farinha; Hélder Santos; Fernanda M Silva; Márcio Cascante-Rusenhack; Paulo Luís Journal: Int J Environ Res Public Health Date: 2020-11-23 Impact factor: 3.390
Authors: Tessa Peasgood; Clara Mukuria; Jill Carlton; Janice Connell; Nancy Devlin; Karen Jones; Rosemary Lovett; Bhash Naidoo; Stacey Rand; Juan Carlos Rejon-Parrilla; Donna Rowen; Aki Tsuchiya; John Brazier Journal: Eur J Health Econ Date: 2021-04-28