Predictors of psychological distress following major trauma

AIM

The aim of this study was to identify variables that may predict later psychological distress in patients following admission to a Major Trauma Centre (MTC) and to determine whether a psychological screening tool, the Posttraumatic Adjustment Screen (PAS), administered on admission was able to contribute to this.

METHODS

Patients referred to the MTC clinical psychology service completed the PAS during their inpatient stay over an eight-month period. Following discharge from hospital, patients were telephoned (1 month, 3 months and 6 months post injury) by a member of the clinical psychology team and asked two validated questionnaires; the Impact of Events Scale revised (IES-R) (measure of posttraumatic stress symptoms) and the CORE-10 (measure of global psychological distress). In addition, patients' data from the local Trauma Audit & Research Network (TARN) database was reviewed to identify information related to injury and other demographic data. Patients were divided into groups for comparison based upon their PAS scores using previously described severity cut offs for posttraumatic stress symptoms and depression. Receiver Operator Characteristic and Multiple Linear Regression analysis was used to examine for significant baseline predictors of psychological distress during follow up according to the IES and CORE-10 scores.

RESULTS

One hundred and fourteen patients completed the PAS over the study period. Follow-up psychological data was available for 63 (56%) of patients. Except for the patient's home address, no baseline parameter examined in this study regarding patient demographics, injury or treatment was associated with reported psychological symptoms in the first six months post injury as measured by the IES-R or CORE-10 scores. Multiple linear regression analysis revealed that both PAS-P and PAS-D were significant predictor variables for patients reporting significant symptoms of posttraumatic stress and global psychological distress (according to IES-R and CORE-10 scores) in the first six months post injury.

CONCLUSIONS

Psychological screening on admission may be helpful in identifying patients admitted to MTCs who are at risk at developing posttraumatic stress symptoms and psychological distress following major trauma.