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Correlations between the 3 scales ranged from 0.79 to 0.99. All 3 measures demonstrated excellent convergent and discriminant properties. Item level agreement ranged from 70-80%. For the DSM-5 and blended versions of the scale, a score of 30 and 24, respectively, best approximated the DSM-IV cutoff of ≥35 that had previously optimized PTSD detection in conjunction with EHR screening. Conclusions Among injured trauma survivors, the psychometric performance of the DSM-IV PTSD Checklist with the addition of the 4 new DSM-5 PTSD Checklist it