Laporte, P. P., Matijasevich, A., Munhoz, T. N., Santos, I. S., Barros, A. J., Pine, D. S., … & Salum, G. A. (2020). DOI: https://doi.org/10.1016/j.jaac.2019.12.008

Disruptive Mood Dysregulation Disorder (DMDD) is a relatively new diagnosis created within DSM 5 to describe children with significant mood dysregulation and behavioural problems (previously thought to have junior bipolar disorder).  This study uses the DAWBA to identify the prevalence of DMDD in the general population and estimates that it is around 3%.

https://www.jaacap.org/article/S0890-8567(20)30063-0/fulltext?dgcid=raven_jbs_aip_email