While Cognitive Behaviour Therapy (CBT) is known to lead to remission of anxiety in 59% of young people, there is little data about its longer-term impact. This study found an relapse rate of 8% across multiple studies, slightly greater (10%) for those with autism.

Levy, H. C., Stevens, K. T., & Tolin, D. F. (2022). Research Review: A meta‐analysis of relapse rates in cognitive behavioral therapy for anxiety and related disorders in youth. Journal of Child Psychology and Psychiatry, 63(3), 252-260.

https://acamh.onlinelibrary.wiley.com/doi/abs/10.1111/jcpp.13486?campaign=woletoc