Patients were recruited from oncology practices in Los Angeles to participate in a longitudinal, observational study of cancer-related fatigue (RISE study). Women were eligible if they had been recently diagnosed with Stage 0-IIIA breast cancer, had not yet started adjuvant or neoadjuvant therapy with radiation, chemotherapy, or endocrine therapy, and were English proficient. Primary recruitment sites were UCLA and Cedars Sinai Medical Center (CSMC).
Participants completed assessments at baseline, end of treatment (for those who received radiation and/or chemotherapy), and at 6, 12, and 18-month post-treatment follow-ups. The majority of women (91%) had completed surgery (lumpectomy or mastectomy) at the time of enrollment; the remaining 9% were enrolled before neoadjuvant therapy and thus had not had surgery at baseline. The Institutional Review Boards at UCLA and CSMC approved the study, and all participants provided written informed consent.