The researchers then investigated the occurrence of the following neuropsychiatric outcomes in the first 180 days after COVID-19 diagnosis: intracranial hemorrhage; ischemic stroke; Parkinson’s disease; Guillain-Barré syndrome; nerve, nerve root, and plexus disorders; neuromuscular disorders; encephalitis; dementia; psychotic disorders; mood disorders; anxiety disorders; substance use disorder; and insomnia.
Overall, 33.62% of COVID-19 patients received one of the above diagnoses within 180 days; this rate increased to 38.73% among patients who were hospitalized and 46.42% among patients admitted to intensive care.
https://www.cnbc.com/2021/04/07/how-covid-affects-mental-health-and-brain-after-recovery-long-term.html