Decisional conflicts, anxiety, and perceptions of shared decision-making in cancer treatment trajectory among adolescents with cancer: A longitudinal study.

Purpose: To examine the trajectory of decisional conflict and anxiety experienced by adolescents after the cancer diagnosis, and explore their perceptions on participation in shared decision-making (SDM).
Design: This longitudinal study used incorporated data from questionnaires and interviews.
Methods: Participants recruited from an academic hospital in southern Taiwan ranged in age from 13 to 20 years with a cancer diagnosis within 1 month and received cancer treatment. Each participant completed questionnaires on decisional conflict and anxiety at diagnosis, 1, 3, and 6 months later. Individual interviews were to gain an in-depth understanding of SDM.
Findings: Total scores on decisional conflict changed significantly over time (F = 2.98, p = 0.039); the scores at 1 month were higher than 3 months (t = 2.18, p = 0.04) and 6 months (t = 2.97, p = 0.008). Participants perceived significantly different levels of values clarify (F = 9.49, p < 0.01) and support (F = 8.46, p < 0.01) over time. Only 27.3% of participants were anxiety-free. No significant differences were found in anxiety over time. The perception of SDM was a situational involvement.
Conclusions: Decisional conflict changed over time. Participants experienced greater decisional conflict at 4-8 weeks after diagnosis and their anxiety did not decrease over time. The different levels of participation in SDM during their treatment trajectory were found.
Clinical Relevance: Participants experienced the highest decisional conflict during diagnosis, and highlighted how their roles in healthcare discussions varied from direct participation to indirect involvement. Further research is needed to develop an SDM model which accommodates different levels of needs and implements timely support.
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