Incidence in medical patients

What is incidence?

The incidence of PTSD refers to how many new cases there are per population in a specified time-period after exposure to a traumatic event. It is different from prevalence, which represents how many overall cases exist. This topic presents the evidence on incidence rates in people exposed to medical conditions. Please also see the related prevalence topic and the risk factor topic on physical illness and injury.

What is the evidence for the incidence of PTSD after physical illness?

Moderate quality evidence finds the incidence of PTSD after an organ transplant ranges from 10% at 7 months post-transplant to 17% at 3 years post-transplant.

Moderate to low quality evidence finds the incidence of PTSD after a cardiac arrest ranges from 19% at 9 months post-transplant to 27% at 45 months post-transplant.

August 2021

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Last updated at: 11:24 pm, 3rd August 2021
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Fact Sheet Technical Commentary

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