A systematic review of 23 studies provides an overview of psychiatric symptoms in Long COVID-19 patients and the risk factors associated with it. 

The most prevalent reported psychiatric symptoms, from the most to the least reported, were anxiety, depression, post-traumatic stress disorder (PTSD), poor sleep qualities, somatic symptoms, and cognitive deficits.

Being female and having previous psychiatric diagnoses were risk factors for the development of the reported symptoms. 

Detailed screening for mental disorders and early intervention is recommended to improve the quality of life of patients with Long COVID-19.