WOMAC and SF-36: instruments for evaluating the health-related quality of life of elderly people with total hip arthroplasty. A descriptive study
Document title: WOMAC and SF-36: instruments for evaluating the health-related quality of life of elderly people with total hip arthroplasty. A descriptive study
Journal: Sao Paulo medical journal
Database: PERIÓDICA
System number: 000385838
ISSN: 1516-3180
Authors: 1
1
1
1
Institutions: 1Universidade Estadual de Campinas, Campinas, Sao Paulo. Brasil
Year:
Season: Jul
Volumen: 133
Number: 4
Pages: 290-297
Country: Brasil
Language: Inglés
Document type: Estadística o encuesta
Approach: Descriptivo
English abstract Quality-of-life results have increasingly been evaluated among patients undergoing joint replacements. The objective of this study was to compare two assessment instruments for health-related quality of life (one generic and the other specific), among elderly patients undergoing total hip arthroplasty. DESIGN AND SETTING: Cross-sectional descriptive study in a reference hospital in the region of Campinas. METHODS: The subjects were 88 elderly outpatients aged 60 years or over who underwent primary total hip arthroplasty. Two instruments for assessing health-related quality of life were applied: the generic Medical Study 36-item Short-Form Health Survey (SF-36) and the specific Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC). Cronbach's alpha and the ceiling and floor effects of the instruments were evaluated. RESULTS: The scores from both instruments showed that issues of a physical nature affected these elderly people's quality of life most. The pain and stiffness dimensions of WOMAC showed ceiling effects and only the functional capacity and pain dimensions of the SF-36 did not show the ceiling effect. The SF-36 presented floor effects in the dimensions of physical and emotional aspects. Cronbach's alpha was considered satisfactory in both instruments (α > 0.70). CONCLUSIONS: The floor and ceiling effects that were observed suggest that these instruments may present some limitations in detecting changes to the majority of the SF-36 dimensions, except for functional capacity and pain, and to the pain and stiffness dimensions of WOMAC, when applied to elderly people with total hip arthroplasty
Portuguese abstract Os resultados sobre a qualidade de vida têm sido cada vez mais avaliados em pacientes submetidos a substituições articulares. Este estudo objetivou comparar dois instrumentos de avaliação de qualidade de vida relacionada à saúde (um genérico e outro específico), em pacientes idosos submetidos a artroplastia total de quadril. TIPO DE ESTUDO E LOCAL: Estudo descritivo transversal em hospital de referência da região de Campinas. MÉTODOS: Os sujeitos foram 88 pacientes idosos ambulatoriais, com 60 anos ou mais, submetidos a artroplastia total de quadril primária. Foram aplicados dois instrumentos de avaliação de qualidade de vida relacionada à saúde: Medical Study 36-item Short-Form Health Survey (SF-36) (genérico) e Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) (específico). O coeficiente alfa de Cronbach e os efeitos teto e chão dos instrumentos foram avaliados. RESULTADOS: Os escores de ambos os instrumentos mostraram que as questões de natureza física são as que mais afetam a qualidade de vida desses idosos. As dimensões dor e rigidez do WOMAC apresentaram efeito teto e apenas as dimensões capacidade funcional e dor do SF- 36 não mostraram o efeito teto. O SF-36 apresentou efeito de chão nas dimensões: aspectos físicos e aspectos emocionais. O coeficiente alfa de Cronbach foi considerado satisfatório nos dois instrumentos (α > 0.70). CONCLUSÕES: A constatação dos efeitos chão e teto sugere que esses instrumentos podem apresentar algumas limitações, quando aplicados em idosos com artroplastia total de quadril, para detectar alterações na maioria das dimensões do SF-36, exceto capacidade funcional e dor, e nas dimensões dor e rigidez do WOMAC
Disciplines: Medicina
Keyword: Salud pública,
Traumatología y ortopedia,
Psicometría,
Artroplastia,
Cadera,
Osteoartritis,
Calidad de vida,
Ancianos,
Cuestionarios
Keyword: Medicine,
Public health,
Traumatology and orthopedics,
Psychometrics,
Arthroplasty,
Hip,
Osteoarthritis,
Quality of life,
Aged,
Questionnaires
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