Development of health‐related quality of life and symptoms of anxiety and depression among persons diagnosed with cancer during adolescence: a 10‐year follow‐up study

OBJECTIVE: The main aim was to investigate the development of health‐related quality of life (HRQOL) and symptoms of anxiety and depression in a cohort diagnosed with cancer during adolescence from shortly after up to 10 years after diagnosis. METHODS: Participants (n = 61) completed the SF‐36 and the HADS shortly; six, 12, and 18 months; and two, three, four, and 10 years (n = 28) after diagnosis. Polynomial change trajectories were used to model development. RESULTS: Polynomial change trajectories showed an initial increase which abated over time into a decrease which abated over time for the SF‐36 subscales Mental Health and Vitality; an initial decline which abated over time into an increase for HADS anxiety; and an initial decline which abated over time into an increase which abated over time for HADS depression. The SF‐36 mental component summary showed no change from two to 10 years after diagnosis whereas the SF‐36 physical component summary showed an increase from two years after diagnosis which declined over time. Ten years after diagnosis 29% reported possible anxiety. CONCLUSIONS: Development of HRQOL and symptoms of anxiety and depression appears to be non‐linear among persons diagnosed with cancer during adolescence. Well into permanent survivorship an increase in symptoms of anxiety is shown and approximately a third of the participants report possible anxiety. The findings indicate the need for: studies designed to pinpoint the times of highest psychological risk, clinical follow‐up focusing on psychological problems, and development of effective psychological interventions for survivors of adolescent cancer. © 2015 The Authors. Psycho‐Oncology published by John Wiley & Sons Ltd.