The results support use of the DAR-5 for screening for anger when a short scale is required.

The diagnostic systems performed in different ways in terms of current prevalence rates and levels of comorbidity with depression, but on other broad key indicators they were relatively similar. There was overlap between those with PTSD diagnosed by ICD-11 and DSM-5 but a substantial portion met one but not the other set of criteria. This represents a challenge for research because the phenotype that is studied may be markedly different according to the diagnostic system used.

Recategorization of adjustment disorder into the trauma- and stressor-related disorders is supported by this study. However, further description of the phenomenology of the disorder is required.