Chronic pain among patients treated for breast cancer: Prevalence and associates factors.

OBJECTIVES: Chronic pain has emerged as a significant health issue among women treated for breast cancer, representing a substantial burden that negatively affects quality of life. This study aimed to determine the prevalence and characteristics of chronic pain among Tunisian breast cancer survivors. METHODS: We conducted a cross-sectional descriptive and analytical study including 100 Tunisian women treated for breast cancer at the Medical Oncology Department of Fattouma Bourguiba University Hospital (Monastir, Tunisia). Data collected included sociodemographic and clinical characteristics, lifestyle habits, and medical history. Validated instruments were used, including the Brief Pain Inventory (BPI), Pain Catastrophizing Scale (PCS), DN4 questionnaire, Hospital Anxiety and Depression Scale (HADS), and Family APGAR score. RESULTS: The prevalence of chronic pain in our population was 100%. All participants reported persistent pain following breast cancer surgery, without any other identified medical cause. The most common pain locations were the breast and ipsilateral upper limb. Pain interference was generally mild in both affective and activity domains. Most participants (88%) belonged to highly functional families. Higher pain intensity was significantly associated with a greater number of children and a history of dysthyroidism. Multivariate analysis identified body mass index, number of children, and number of lymph nodes removed as independent predictors of pain intensity. Higher pain intensity was also associated with increased anxiety levels. CONCLUSIONS: Chronic pain is highly prevalent among breast cancer survivors and is influenced by multiple factors, highlighting the need for comprehensive assessment and management strategies.