Age

18–65

Sex

ALL

Healthy volunteers

Not accepted

Age between 18 and 65 years old (inclusive);
Experienced a life-threatening major traumatic event, clearly diagnosed by a clinician;
The patient is able to communicate normally with medical staff through language;
The subject is fully informed and voluntarily signs the informed consent form.

History of psychiatric disorders or current use of psychotropic medications;
Pre-existing cognitive impairment (e.g., dementia, Alzheimer's disease);
Terminal illnesses (such as advanced malignant tumors, end-stage organ failure, advanced neurological diseases, or any other condition judged by the attending physician to have a life expectancy of less than 6 months);
Inability to cooperate with follow-up.

Analysis of Influencing Factors for the Development of PTSD in Emergency Department Trauma Patients