Past studies on whether incarcerated people with mental illness are more likely to be placed in solitary confinement have yielded mixed results. A new study examined the issue in one state's prisons, taking into account factors related to incarcerated men and the facilities where they were imprisoned. It found that having a mental illness was associated with a significant increase in the likelihood of being placed in extended solitary confinement.
source https://phys.org/news/2021-03-prisoners-mental-illness-solitary-confinement.html
