The first phase analyze the potential predictors include the following: socio-demographic characteristics, disease characteristics, lifestyle, perceived benefits, cancer patient' experience with medical service, emotional distress, anxiety, and demoralization.~The second phase will be experimental study.Thus, subjects were randomly sampled and divided into 2 groups: experimental group and control group. Subjects in the experimental group will receive oncology case manager care combined with cancer nurse navigator care, while subjects in the control group will be designed as regular care, which only care with cancer case managers. Both groups will receive long-term follow-up analysis (pre-intervention, post-intervention - 3 months, and 6 months). Outcome measures include the following: perceived benefits, emotional distress, depression and anxiety, demoralization, cancer patient' experience with medical service, and medical report indicators (retention rate, completion rate, survival rate, mortality rate, untreated cancer within 3 months).
Cancer patients will be recruited from the Taipei Cancer Center of Taipei Medical University. This study was divided into two phases. The first phase adopted cross-sectional study design with questionnaires to analyze the potential predictors of depressive symptoms among cancer patients. The second stage was adopted experimental study design to explore the effectiveness of nurse navigators in cancer care.