"The most commonly reported type of disability among both state and federal prisoners was cognitive disability (23%), followed by ambulatory (12%) and vision (11%) disabilities.2 Among all prisoners, 24% reported that a doctor, psychologist, or teacher had told them at some point in their life that they had an attention deficit disorder. Nearly a quarter of all prisoners reported participating in special education classes (24%)."
Laura M. Maruschak, Jennifer Bronson, PhD, and Mariel Alper, PhD. Survey of Prison Inmates, 2016: Disabilities Reported By Prisoners. US Dept. of Justice Bureau of Justice Statistics. NCJ 252642. March 2021.