Assessment of the measurement properties of quality of life questionnaires in Brazilian women with breast cancer



Título del documento: Assessment of the measurement properties of quality of life questionnaires in Brazilian women with breast cancer
Revista: Brazilian journal of physical therapy
Base de datos: PERIÓDICA
Número de sistema: 000376029
ISSN: 1809-9246
Autores: 1
1
1
1
Instituciones: 1Universidade Cidade de Sao Paulo, Programa de Mestrado e Doutorado em Fisioterapia, Sao Paulo. Brasil
Año:
Periodo: Jul-Ago
Volumen: 18
Número: 4
Paginación: 372-383
País: Brasil
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Experimental, aplicado
Resumen en inglés There are several questionnaires available to assess quality of life in breast cancer, however the choice of the best questionnaire often does not take into account the adequacy of these questionnaires’ measurement properties. Objective: To test the measurement properties of two generic quality of life questionnaires and one quality of life questionnaire specific for women with breast cancer. Method: We assessed 106 women after surgery for breast cancer. The assessment included application of the SF-36, WHOQOL-bref, and FACT-B+4 questionnaires as well as the Global Perceived Effect and Pain Numerical Rating scales. The participants were interviewed on three occasions to investigate internal consistency, floor and ceiling effects, construct validity, reproducibility, and responsiveness. Results: Most of the instruments’ domains showed adequate internal consistency (Cronbach’s alpha varying from 0.66 to 0.91). Reliability varied from poor to substantial (ICC2,1 between 0.39 and 0.87) and agreement varied from negative to very good. The SF-36 presented doubtful agreement and showed floor and ceiling effects in three domains. The domains of the generic questionnaires presented moderate to good correlation with the FACT-B+4 (Pearson varying from 0.31 to 0.69). The internal responsiveness varied from small to large (ES varying from –0.26 to 0.98) and external responsiveness was found in only some of the instruments’ domains. Conclusions: Most of the measurement properties tested for the WHOQOL-bref and FACT-B+4 were adequate as was their ability to assess quality of life in women with breast cancer. The SF-36 showed inadequacy in agreement and floor and ceiling effects and should not be used in women with breast cancer
Disciplinas: Medicina
Palabras clave: Oncología,
Terapéutica y rehabilitación,
Cáncer,
Mama,
Fisioterapia,
Calidad de vida,
Cuestionarios
Keyword: Medicine,
Oncology,
Therapeutics and rehabilitation,
Cancer,
Breast,
Physical therapy,
Quality of life,
Questionnaires
Texto completo: Texto completo (Ver PDF)