Emotional and behavioral problems of pediatric cancer survivors and their siblings: Concordance of child self-report and parent proxy-report.

The findings point out the importance of psychosocial services in regular aftercare. These should not only focus on survivors, but additionally address the siblings' needs. The low concordance between the parents' and the children's perspectives on emotional problems, prosocial behavior, and peer relationship problems suggests the inclusion of both perspectives to allow needs-based support.