Screening for PTSD in police officers: Preliminary psychometric properties of the adapted primary care PTSD screen for DSM-5 (PC-PTSD-5 [0-20]) screener.

Abstract

Objective: Police officers are at heightened risk for posttraumatic stress disorder (PTSD) due to frequent exposure to traumatic stressors. Early identification of PTSD symptoms is crucial for timely intervention. However, stigma and low utilization of mental health services create barriers to accessing care, which can be improved through the use of accessible, brief, and efficient screening instruments. The Primary Care PTSD for Diagnostic and Statistical Manual of Mental Disorders, fifth edition (DSM-5; PC-PTSD-5) scale is a brief, five-item self-report questionnaire demonstrating good reliability and validity in the identification of probable PTSD among veterans and civilians but has not yet been examined in first responder populations.

Method: In this study, we assess the psychometric properties of an adapted version of the measure (PC-PTSD-5 [0-20]) in a sample of U.S. police officers (N = 394), focusing on reliability, structural validity, measurement invariance, and convergent and discriminant validity.

Results: Internal consistency of the PC-PTSD-5 [0-20] was good (α = .87), with uniform item-total correlations ranging from .78 to .83. Confirmatory factor analysis supported a single-factor structure (comparative fit index = 0.97, Tucker-Lewis index = 0.94, root-mean-square error of approximation = 0.12 (90% CI [.08, .16]), standardized root-mean-square residual = 0.03) that was invariant between male and female officers, χ²(9, N = 394) = 2.72, p = .974, and across years of service, χ²(9, N = 394) = 9.02, p = .436, providing evidence of construct validity. The measure also demonstrated convergent and discriminant validity, showing varying degrees of correlational strength with 20 operational stressors, the strongest of which were with traumatic stressors (r = .52, p < .001).

Conclusions: These findings suggest the PC-PTSD-5 [0-20] may be a valuable tool for identifying PTSD symptoms in police officers, benefiting both clinical and research applications. (PsycInfo Database Record (c) 2024 APA, all rights reserved).