Home ❯ Prevalence in psychiatric patients

Prevalence in psychiatric patients

What is prevalence of PTSD in psychiatric patients?

Prevalence represents the overall proportion of individuals in a population who have the disorder of interest. It is different from incidence, which represents only the new cases that have developed over a particular time period. Point prevalence is the proportion of individuals who have the disorder at a given point in time. Period prevalence is the proportion of individuals who have the disorder over specific time periods. Lifetime prevalence is the proportion of individuals who have ever had the disorder. Lifetime morbid risk includes those who had the disorder but were deceased at the time of the survey.

What is the evidence for the prevalence of PTSD in psychiatric patients?

Moderate quality evidence finds the mean prevalence of PTSD in specialist mental health services is 31%, with 27% of these being previously undiagnosed.

Moderate quality evidence finds the prevalence of PTSD diagnosis in first-episode psychosis patients is around 30% up to 2 years after the first episode of psychosis. The prevalence of PTSD symptoms is found in 42% of patients with first-episode psychosis. Rates were highest in people with first-episode affective psychosis and in hospitalised patients.

August 2021

Image: ©Katarzyna Bialasiewicz Photographee.eu – stock.adobe.com

Last updated at: 3:40 am, 8th October 2021
To view documentation related to this topic download the files below
Fact Sheet Technical Commentary

NeuRA Libraries

Title Colour Legend:
Green - Topic summary is available.
Orange - Topic summary is being compiled.
Red - Topic summary has no current systematic review available.