Abstract
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 (α 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.
This is a preview of subscription content, access via your institution.


References
Wolfensberger W. Lets hang up “Quality of Life” as a hopeless term. In: Goode D, editor. Quality of life for persons with disabilities: International perspectives and issues. Cambridge: Brookline Books; 1994. p. 285–321.
Orley J. The World Health Organization (WHO) Quality of Life Project. In: Trimble M, Dodson W, editors. Epilepsy and quality of life. New York: Raven Press; 1994. p. 99–108.
WHOQOL Group. Development of the WHOQOL: Rationale and Current Status. Int J Ment Health 1994a;23(3):24–56.
WHOQOL Group. The World Health Organization Quality of Life Assessment (WHOQOL): Position paper from the World Health Organization. Soc Sci Med 1995;41(10):1403–9.
WHOQOL Group. The development of the World Health Organization Quality of Life Assessment Instrument (the WHOQOL). In: Orley J, Kuyken W, editors. Quality of Life Assessment: International perspectives. Berlin: Springer-Verlag; 1994b. p. 41–60.
WHOQOL Group. The World Health Organization Quality of Life Assessment (WHOQOL): Development and General Psychometric Properties. Soc Sci Med 1998;46(12):1569–85.
Skevington SM. Measuring Quality of Life in Britain: Introducing the WHOQOL-100. J Psychosom Res 1999;47(5):449–59.
Skevington SM, Sartorius N, Amir M, WHOQOL Group. Developing methods for assessing quality of life in different cultural settings. Social Psychiatry Epidemiology 2004;39:1–8.
Skevington S, Bradshaw J, Saxena S. Selecting national items for the WHOQOL: conceptual and psychometric considerations. Soc Sci Med 1999;48:473–87.
Berlim MT, Pavanello DP, Caldieraro MA, Fleck M. Reliability and validity of the WHOQOL BREF in a sample of Brazilian outpatients with major depression. Qual Life Res 2005;14:561–4.
Fleck M. O instrumento de avaliação de qualidade de vida da Organização Mundial da Saúde (WHOQOL-100): Características e perspectivas. Ciência & Saúde Colectiva 2000;5(1):33–8.
Fleck M, Leal O, Louzada S, Xavier M, Chachamovich E, Vieira G, et al. Desenvolvimento da versão em português do instrumento de avaliação de qualidade de vida da OMS (WHOQOL-100). Rev Bras Psiquiatr 1999a;21(1):19–28.
Fleck M, Louzada S, Xavier M, Chachamovich E, Vieira G, Santos L, et al. Aplicação da versão em português do instrumento de avaliação de qualidade de vida da OMS (WHOQOL-100). Rev Saúde Pública 1999b;33(2):198–205.
Fleck M, Louzada S, Xavier M, Chachamovich E, Vieira G, Santos L, et al. Aplicação da versão em português do instrumento abreviado de avaliação de qualidade de vida “WHOQOL-bref”. Revista Saúde Pública 2000;33(2):178–83.
Canavarro MC, Vaz Serra A, Pereira M, Simões MR, Quintais L, Quartilho MJ, et al. Desenvolvimento do Instrumento de Avaliação da Qualidade de Vida da Organização Mundial de Saúde (WHOQOL-100) para Português de Portugal. Psiquiatr Clín 2006;27(1):15–23.
Rijo D, Canavarro MC, Pereira M, Simões MR, Vaz Serra A, Quartilho MJ, et al. Especificidades da avaliação da Qualidade de Vida na população portuguesa: O processo de construção da faceta portuguesa do WHOQOL-100. Psiquiatr Clín 2006;27(1):25–30.
Vaz Serra A, Canavarro MC, Simões MR, Pereira M, Gameiro S, Quartilho MJ, et al. Estudos psicométricos do instrumento de avaliação da Qualidade de Vida da Organização Mundial de Saúde (WHOQOL-100) para Português de Portugal. Psiquiatr Clín 2006a;27(1):31–40.
Vaz Serra A, Canavarro MC, Simões MR, Pereira M, Gameiro S, Quartilho MJ, et al. Estudos psicométricos do instrumento de avaliação da Qualidade de Vida da Organização Mundial de Saúde (WHOQOL-Bref) para Português de Portugal. Psiquiatr Clín 2006b;27(1):41–9.
Beck AT, Ward C, Mendelson M, Mock J, Erbaugh J. An inventory for measuring depression. Arch Gen Psychiatry 1961;4:561–71.
Vaz Serra A, Pio Abreu JL. Aferição dos quadros clínicos depressivos. I – Ensaio de aplicação do “Inventário Depressivo de Beck” a uma amostra portuguesa de doentes deprimidos. Coimbra Méd 1973a;XX:623–44.
Vaz Serra A, Pio Abreu JL. Aferição dos quadros clínicos depressivos. II – Estudo preliminar de novos agrupamentos sintomatológicos para complemento do “Inventário Depressivo de Beck”. Coimbra Méd 1973b;XX:713–36.
Canavarro MC. Inventário de Sintomas Psicopatológicos—BSI. In: Simões MR, Gonçalves M, Almeida L, editors. Testes e provas psicológicas em Portugal—Vol. 2. Braga: APPORT/SHO; 1999. p. 95–109.
Derogatis LR. BSI: Brief Symptom Inventory. Administration, Scoring and Procedures Manual. Minneapolis: National Computers Systems; 1993.
Bonomi AE, Patrick DL, Bushnell DM, Martin M. Validation of the United States’ version of the World Health Organization Quality of Life (WHOQOL) instrument. J Clin Epidemiol 2000;53:1–12.
Acknowledgements
The authors wish to thank the WHOQOL Group, particularly Professors Shekhar Saxena, Somnath Chatterji, Mark Van Ommeren and Debashish Chattopadhyay.
A very special thanks is due to Prof. Marcelo Fleck, coordinator of the Brazilian WHOQOL Center, consultant of the WHOQOL Project of European Portuguese, for all the support given during the various phases of this process.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Canavarro, M.C., Serra, A.V., Simões, M.R. et al. Development and Psychometric Properties of the World Health Organization Quality of Life Assessment Instrument (WHOQOL-100) in Portugal. Int.J. Behav. Med. 16, 116–124 (2009). https://doi.org/10.1007/s12529-008-9024-2
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s12529-008-9024-2
Keywords
- Quality of Life
- World Health Organization
- Assessment
- Focus Groups
- Psychometric studies