EORTC QLQ-C30 symptom components and their functional correlates during adjuvant chemotherapy for early breast cancer: a multivariate analysis. Data from GEICAM/2003-02 study
Understanding how multiple symptoms jointly impact functioning is essential for interpreting patient-reported outcomes (PROs) in oncology. We aimed to characterize the main dimensions underlying change-from-baseline (CFB) in symptom scores during adjuvant chemotherapy for early breast cancer, and to examine their assoc...