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[Functional Assessment of Cancer Therapy Questionnaire for Breast Cancer (FACT-B+4). Spanish version validation]
Roser Belmonte Martínez1, Olatz Garin Boronat, Marcel Segura Badía
1Servei de Medicina Física i Rehabilitació, Hospital Mar-Esperança, Parc de Salut Mar, Barcelona, Spain. rbelmonte@parcdesalutmar.cat
Background And Objectives:
To evaluate the acceptability, reliability, validity, and sensitivity to change of the Spanish version of the FACT-B+4 questionnaire, designed to assess the health related quality of life (HRQL) in breast cancer.
Patients And Methods:
Prospective study with 2 samples: patients with incident breast cancer (n=104) evaluated before and after surgery; and patients with chronic lymphedema of the upper extremity (n=30), evaluated twice in 7days. HRQL was assessed using the generic instrument SF-36 and the specific one FACT-B+4.
Results:
Reliability coefficients were ≥ 0.7 for most scores. The Physical wellbeing, Breast Cancer, Arm and TOI scores discriminated between patients with and without chemotherapy (p<0.05), while the Arm scale discriminated between patients with and without axillary surgery (p<0.001). In the worsening sub-sample, the FACT-B+4 detected changes in Physical, Emotional and Functional Wellbeing, and TOI scores.
Conclusions:
The metric characteristics of the Spanish version of the FACT-B+4 are similar to the original questionnaire and support its equivalence, documenting its suitability for use in our country or in international studies.
