Trajectories of Anxiety and Depression in Cancer Patients, Risk and Predictive Factors and Supportive Care; Prognostic Awareness and Shared Decision Making.

To examine the trajectories of anxiety and depression symptoms over the course of oncological disease, and to assess potential predictors-sociodemographic (age, sex, marital status, employment status), clinical (tumor location, stage, treatment type, general health), psychological (coping strategies, quality of life, cognitive difficulties, fear of recurrence), and physical activity-and their association with support needs and utilization of psychosocial services.