Post Traumatic Stress Disorder (PTSD) was formerly classified under the broader umbrella of anxiety disorders. The DSM-V revised the diagnostic elements of PTSD and added a classification of PTSD for children (6 or younger). In addition the DSM-V reclassified PTSD in a new category labeled, trauma and stress related disorders requiring exposure to very stressful or traumatic events (whereas other anxiety disorders need not necessarily require such trauma).
Nationwide, women are more likely to suffer from PTSD than men and PTSD is more likely to occur when the same person is exposed to multiple traumatic events, including car accident injuries. The DSM-V recognized a subcategory of PTSD, called, Post Traumatic Stress Disorder in Preschool Children, that may arise when young children are exposed to traumatic events such as: car accidents, dog bite injuries, witnessing violence, being physically abused themselves, experiencing a natural disaster and being forced to undergo painful medical procedures. These children are more likely to exhibit social withdrawal, frequent temper tantrums or other negative mood elements.