Convergent validity between SF-36 and WHOQOL-BREF in older adults

Revista de Saúde Pública

Paula Costa Castro¹  Patrícia Driusso¹  Jorge Oishi¹ 

关键词: Aging;    Quality of Life;    Reproducibility of Results;    Validity of Tests;    Evaluation of Research Programs and Tools;    Evaluation Studies as Topics;    Envelhecimento;    Qualidade de Vida;    Reprodutibilidade dos Testes;    Validade dos Testes;    Avaliação de Programas e Instrumentos de Pesquisa;    Estudos de Avaliação como Assunto;    Mujeres Embarazadas;    Trastornos Mentales;    Violencia contra la Mujer;    Maltrato Conyugal;    Estudios Transversales;   

DOI  :  10.1590/S0034-8910.2014048004783

来源: SciELO

【 摘 要 】

OBJECTIVE: To compare the reliability and convergent validity of instruments assessing quality of life in Brazilian older adults. METHODS: Cross-sectional study of 278 literate, community-dwelling older adults attending a municipal university for the elderly in Sao Carlos, SP, Southeastern Brazil between 2006 and 2008. The Brazilian versions of the SF-36 and WHOQOL-BREF instruments to assess quality of life were compared. Cronbach’s alpha coefficient was used to estimate reliability and Pearson’s correlation for comparison between the two scales. RESULTS: Most of participants were women (87.8%) with a mean age of 63.83±7.22 years. Both scales showed an acceptable internal consistency – WHOQOL-BREF Cronbach’s alpha was 0.832 and SF-36 was 0.868. There was a weak (r ≤ 0.6) correlation between the related fields in the two questionnaires. CONCLUSIONS: The SF-36 and WHOQOL-BREF are reliable instruments for clinical and research uses in Brazilian older women. To select one, researchers should consider which aspects of quality of life they aim to capture because of weak convergent validity signs. This study’s results indicate that WHOQOL-BREF may be more relevant to evaluate changes in the quality of life of older women because it prioritizes responses to the aging process and avoids focusing on impairment.

【 授权许可】

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