Validation of the Functional assessment of cancer therapy-Breast Symptom Index (FBSI)
We assessed the reliability, validity, and responsiveness to change of the 6-item Functional Assessment of Cancer Therapy-Breast Symptom Index (FBSI) in a sample of 615 metastatic breast cancer patients. The FBSI is a brief, clinically relevant, and psychometrically sound instrument that can be used to measure symptoms in patients with breast cancer.
Yost, K. J., Yount, S. E., Eton, D. T., Silberman, C., Heyes, A., & Cella, D. (2005). Validation of the Functional assessment of cancer therapy-Breast Symptom Index (FBSI). Breast Cancer Research and Treatment, 90(3), 295-298. DOI: 10.1007/s10549-004-5024-3