OBJECTIVE: Psychosocial comorbidity and quality of life (QOL) and its association with knowledge, utilization, and need for psychosocial support have been studied in long-term breast cancer survivors. METHODS: One thousand eighty-three patients were recruited through a population-based cancer registry an average of 47 months following diagnosis (66% response rate). Self-report measures (e.g., Hospital Anxiety and Depression Scale, Posttraumatic Stress Disorder Checklist--Civilian Version, and Short-Form Health Survey) were used. RESULTS: Thirty-eight percent of patients had moderate to high anxiety, and 22% had moderate to high depression; posttraumatic stress disorder was observed in 12%. The overall psychological comorbidity was 43% and 26% for a possible and probable psychiatric disorder. Disease progress, detrimental interactions, less social support, a lower educational level, and younger age were predictors of psychological comorbidity (P
