In terms of assessment tools, clinicians commonly utilize the Clinician-Administered Post-traumatic Stress Disorder Scale (CAPS) and the post-traumatic stress disorder Checklist for DSM-5 (PCL-5). These instruments demonstrate good reliability and validity, making them the two most widely used methods for measuring PTSD at present (
13). The CAPS-5 is primarily a structured interview tool, in which an interviewer asks questions and scores responses; conversely, PCL-5 is mainly a self-report scale completed by patients. Both tools assess PTSD symptoms over the past month. However, they differ in several key aspects. Firstly, regarding the assessment process and scoring options: In PCL-5, respondents report their level of distress associated with each symptom experienced in the past month on a scale from 0 (“not at all”) to 4 (“extremely”). In contrast, CAPS-5 involves an interviewer who asks a series of questions to evaluate not only whether symptoms occurred in the previous month but also their intensity (i.e., severity during typical episodes such as minimal, clearly present, significant, or extreme), frequency of occurrence, and non-specific symptoms (e.g., sleep disturbances). The interviewer then integrates this information according to predetermined scoring rules to determine symptom severity ratings ranging from 0 (“none”) to 4 (“extreme”). Consequently, PCL-5 scores reflect perceived distress related to each symptom, while CAPS-5 scores indicate symptom intensity — which varies by symptom type (for example, the degree of distress caused by nightmares; extent of avoidance behaviors; conviction levels regarding distorted beliefs) — as well as frequency and trauma relevance. In recent years, researchers have developed specialized versions targeting war-related PTSD, such as the Military Version of PCL (PCL-M), which aligns more closely with military experiences. The 17 items within PCL-M describe each relevant symptom outlined in DSM-5 while linking them specifically to stress-inducing military experiences. This tool serves as a universal screening instrument for diagnostic purposes (
14). Utilizing a Likert-type scale ranging from 1 (“not at all”) to 5 (“extremely”), it indicates severity levels for these symptoms; total scores exceeding 49 are considered indicative of potential PTSD (
15). According to DSM-5 criteria for diagnosing PTSD — requiring positive endorsement of at least one re-experiencing item, three avoidance items, and two hyperarousal items — PCL-M functions effectively as a brief self-report tool that can readily screen military personnel who may be experiencing underlying PTSD (
16). Indeed, combatants in wartime contexts face high-risk situations for PTSD; thus, employing this straightforward self-assessment measure significantly aids in mitigating non-combat attrition among service members.