Diagnostic concordance of DSM IV and DSM 5 Posttraumatic Stress Disorder (PTSD) in a clinical sample.
BACKGROUND The present study aims to analyze diagnostic concordance between the DSM IV and the DSM 5 for posttraumatic stress disorder (PTSD) diagnostic criteria and their different groups of symptoms. Furthermore, analyses are conducted to establish the features of participants with no concordant diagnoses. METHOD The study assessed 166 people over 18 who had experienced at least one traumatic event. PTSD diagnosis was established using the Global Scale for Posttraumatic Stress (EGEP) a self report measure to assess PTSD. RESULTS The presence of cognitive avoidance was a determinant in the PTSD DSM 5 diagnosis (86% positive predictive value) The analysis of the non concordant individuals revealed that individuals who were diagnosed according to the DSM IV criteria but not the DSM 5 criteria were primarily indirect victims. Conversely, individuals who were diagnosed with the DSM 5 criteria and not with the DSM IV criteria presented cognitive avoidance and alterations in cognition not included in the DSM IV criteria. CONCLUSIONS A within subjects concordance analysis showed high agreement for PTSD diagnosis between the two classifications. Differences between the diagnoses are due to the new definition of C (avoidance) and D (negative alterations in cognitions and mood) in the DSM 5.
Psicothema