Table 1.

Summary of Proposed PTSD Diagnostic Criteria Sets Compared to DSM-IV Criteria

Criterion	DSM-IV	PTSD-AA	DSM-5	DSM-5-UC
A.2. extreme reaction at  the time of the event	Required	Not required	Not required	Not required
Re-experiencing symptoms. Requires 1 of 5:	Intrusive and distressing recollection	Intrusive recollections not required to be distressing	Same as PTSD-AA	Same as PTSD-AA
	Nightmares	Nightmares
	Dissociation	Dissociation
	Psychological distress at reminders	Psychological distress at reminders
	Physiological distress at reminders	Physiological distress at reminders
Avoidance and numbing symptoms	Requires 3 of 7:	Requires 1 of 7:	Requires 1 of 5:	Requires 1 of 6:
	Avoid thoughts, feelings, conversations	Avoid thoughts, feelings, conversations	Avoid thoughts, feelings, conversations	Avoid thoughts, feelings, conversations
	Avoid activities, places, people	Avoid activities, places, people	Avoid activities, places, people	Avoid activities, places, people
	Inability to recall trauma	Inability to recall trauma
	Diminished interests	Diminished interests emphasize play constriction	Diminished interests emphasize play constriction	Diminished interests emphasize play constriction
	Detachment from others	Socially withdrawn behavior	Socially withdrawn behavior	Socially withdrawn behavior
	Restricted affect	Restricted affect	Restricted affect limited to positive emotions	Restricted affect limited to positive emotions
	Sense of foreshortened future	Sense of foreshortened future
				Increased negative emotional states
Increased arousal symptoms	Requires 2 of 5:	Requires 2 of 5:	Requires 2 of 5:	Requires 2 of 6:
	Sleep difficulty	Sleep difficulty	Same as PTSD-AA	Sleep difficulty
	Irritability, outbursts of anger	Irritability includes excessive temper		Irritability includes excessive temper
	Concentration difficulty	Concentration difficulty		Concentration difficulty
	Hypervigilance	Hypervigilance		Hypervigilance
	Exaggerated startle response	Exaggerated startle response		Exaggerated startle response
				Reckless/self- endangering behavior

DSM-IV= Diagnostic and Statistical Manual, Fourth Edition. PTSD-AA = proposed alternative algorithm for young children. DSM-5 = proposed DSM-5 posttraumatic stress in preschool children. DSM-5-UC = DSM-5 with two symptoms under consideration.