In addition to well-known associations between stimulant medication and shorter height, this Swedish study confirms that ADHD itself may be associated with shorter height.

Ahlberg, R., Garcia-Argibay, M., Du Rietz, E., Butwicka, A., Cortese, S., D’Onofrio, B.M., Ludvigsson, J.F. and Larsson, H., 2023. Journal of the American Academy of Child & Adolescent Psychiatry.

https://www.jaacap.org/article/S0890-8567(23)00185-5/fulltext?dgcid=raven_jbs_etoc_email