Table 1. Study Design With Prevalence of Probable PTSD for Each Instrument.
| Survey groupa | Sample, No. | First instrument | Second instrument | ||
|---|---|---|---|---|---|
| Instrument | Probable PTSD, No. (%) | Instrument | Probable PTSD, No. (%) | ||
| A1 | 475 | PCL-5b | 76 (16.0) | PCL-Cc | 69 (14.5) |
| A2 | 479 | PCL-Cc | 76 (15.9) | PCL-5b | 68 (14.2) |
| B1 | 490 | PCL-5 with 2 PCL-C itemsb | 68 (13.9) | PCL-Cc | 61 (12.5) |
| B2 | 477 | PCL-Cc | 89 (18.7) | PCL-5 with 2 PCL-C itemsb | 74 (15.5) |
Abbreviations: PCL-C, PTSD Checklist–Civilian; PCL-5, PTSD Checklist for DSM-5; PTSD, posttraumatic stress disorder.
a
Instructions for both PCL instruments were the same: “Below is a list of problems that people sometimes have in response to a very stressful experience. Please indicate how much you have been bothered by each problem in the past month.”
b
Assessed according to endorsing moderate or higher for at least 1 intrusion symptom, 1 avoidance symptom, 2 negative alterations in cognitions and mood, and 2 hyperarousal symptoms, using the 20 PCL-5 items.
c
Assessed according to endorsing moderate or higher for at least 1 intrusive reexperiencing symptom, 3 avoidance symptoms, and 2 hyperarousal symptoms, using the 17 PCL-C items.