0350 Psychological and Behavioral Factors Associated with Insomnia in Breast Cancer Patients Undergoing Active Treatments

Abstract

Introduction Psychological and behavioral factors play important roles in chronic insomnia. Among breast cancer patients, insomnia is one of the most common complaints. Recent researches also supported that cognitive behavioral therapy for insomnia, which targets the psychological and behavioral factors, is effective in treating insomnia in patients with breast cancer. However, the mechanism underlying cancer related insomnia may be different from chronic insomnia regarding the specific characteristics of cancer. Besides, most previous researches focused on breast cancer survivors instead of patients undergoing active treatments. Hence, our study aims to explore the psychological and behavioral factors related to insomnia among breast cancer patients undergoing active treatments. Methods 202 female breast cancer patients (age= 49.57±9.42) without comorbidity of psychiatric or sleep disorders who are preparing for surgery and/or undergoing adjuvant therapy, participated in this study. They were asked to complete a set of questionnaires, including Insomnia Severity Index (ISI), Pre-Sleep Arousal Scale (PSAS), Sleep Related Behavior Questionnaire (SRBQ), and Dysfunctional Beliefs and Attitudes about Sleep Questionnaire (DBAS-16). Results Among 202 breast cancer patients, 125 patients (62%, age 50.64±11.10) reported having sleep disturbances. T-tests showed significant differences on ISI (t=-11.501, p