Primary Care PTSD Screen for DSM-5 (PC-PTSD-5)
Also known as: PC-PTSD-5, PC-PTSD
The PC-PTSD-5 is a 5-item self-report screening instrument for posttraumatic stress disorder (PTSD) aligned with DSM-5 diagnostic criteria. Developed by Prins and colleagues in 2015 as an update to the earlier 4-item PC-PTSD, the PC-PTSD-5 is designed specifically for rapid screening in primary care and other non-specialist medical settings. It is freely available, brief, and demonstrates strong sensitivity and specificity for identifying individuals warranting full PTSD diagnostic evaluation.
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When to use it
The PC-PTSD-5 is ideal for rapid screening in primary care, emergency departments, trauma centers, mental health clinic intake, and occupational health settings. It is particularly useful in populations with known or suspected trauma exposure (veterans, refugee populations, disaster survivors, individuals with history of violence or abuse). The scale should be administered to all patients in trauma-focused settings; selective screening based on patient presentation risks missing PTSD cases. However, the PC-PTSD-5 should never be used as a sole source of PTSD diagnosis; a positive screen must be followed by comprehensive clinical assessment.
Strengths & limitations
- Ultra-brief and efficient—5 items and 1–3 minutes to complete, facilitating integration into busy primary care workflows without compromising comprehensiveness
- DSM-5 aligned—directly operationalizes all four DSM-5 PTSD symptom clusters (re-experiencing, avoidance, negative alterations, hyperarousal) in a single item per cluster
- Excellent screening properties—sensitivity approximately 90%, specificity approximately 70% using cutoff of 4; high negative predictive value (~95%) makes it valuable for excluding PTSD
- Free and public domain—available without licensing fees or copyright restrictions, facilitating dissemination across healthcare systems and international settings
- Rapid decision support—provides actionable binary decision (positive vs. negative screen) in seconds, supporting clinical triage and referral processes
- Screening tool, not diagnostic—a positive PC-PTSD-5 does not diagnose PTSD; full diagnostic assessment requires structured clinical interview and confirmation of trauma exposure criteria
- Limited symptom granularity—single items per symptom cluster do not capture the range and severity of PTSD presentations; detailed symptom assessment (e.g., IES-R) needed for comprehensive understanding
- False positives possible—some individuals with depression, anxiety, or other conditions may endorse PTSD-like symptoms without meeting PTSD criteria; clinical judgment required to distinguish
- Limited applicability in non-trauma populations—the scale assumes trauma exposure; in unscreened populations without known trauma history, screening efficiency decreases
- Population variation—cutoff values and operating characteristics may vary by population; some studies support a cutoff of 3 in specific subgroups (e.g., women, non-veterans)
Frequently asked
What is the difference between PC-PTSD-5 and IES-R?
PC-PTSD-5 is a 5-item yes/no screener for PTSD symptoms; it is quick but binary and does not grade severity. IES-R is a 22-item Likert scale measuring subjective distress along three dimensions (intrusion, avoidance, hyperarousal); it provides detailed symptom profiling and severity quantification. Use PC-PTSD-5 for rapid screening in busy settings; use IES-R for detailed symptom assessment, treatment monitoring, or research requiring continuous severity scores.
Can I use PC-PTSD-5 to diagnose PTSD?
No. PC-PTSD-5 is a screening tool only. A positive screen (4 or more 'yes' responses) indicates the need for comprehensive diagnostic assessment using DSM-5 criteria, a structured clinical interview (e.g., CAPS-5), and evaluation of trauma exposure, symptom duration, functional impairment, and exclusion of alternative diagnoses. Diagnosis requires clinical judgment and more detailed information than the PC-PTSD-5 provides.
What if a patient screens negative on PC-PTSD-5 but reports trauma?
A negative PC-PTSD-5 (0–3 'yes' responses) has high negative predictive value (~95%), meaning PTSD is unlikely. However, the individual may have other trauma-related conditions (adjustment disorder, depression, anxiety) or subsyndromal PTSD symptoms. Always take a clinical history; if concerns persist, administer a longer instrument (IES-R, CAPS-5) or refer for specialist evaluation rather than relying on PC-PTSD-5 alone.
Can I change the cutoff for my population?
The standard cutoff of 4 is recommended based on extensive validation. Lowering the cutoff to 3 increases sensitivity but increases false positives; raising it to 5 decreases false positives but increases false negatives. If you are using the PC-PTSD-5 in a unique population, consult local validation studies or conduct internal validation before changing the cutoff. When in doubt, use the standard cutoff of 4.
Sources
- Prins, A., Bovin, M. J., Smolenski, D. J., et al. (2015). The Primary Care PTSD Screen for DSM-5 (PC-PTSD-5): Development and evaluation within a veteran primary care sample. Journal of General Internal Medicine, 31(10), 1206-1211. DOI: 10.1007/s11606-016-3703-5 ↗
- Prins, A., Smolenski, D. J., Bovin, M. J., et al. (2016). Psychometric evaluation of the Primary Care PTSD Screen for DSM-5 (PC-PTSD-5). Depression and Anxiety, 33(S1), 91. link ↗
How to cite this page
ScholarGate. (2026, June 3). Primary Care PTSD Screen for DSM-5 (PC-PTSD-5). ScholarGate. https://scholargate.app/en/trauma-psychology/primary-care-ptsd-screen
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