Table 4. Descriptions of studies.

	Study	PIs	Timing of Study	N	Sample	Exposure Measure	Outcome Measure
1	Hirschel & Shulenberg	Swanson	Jan 2006	399	Community	7 dichotomous items	PCL
2	Cieslak, Benight et al.	Kissinger	Oct 2006	90	Student	16 dichotomous items	PCL
3	McLeish & Del Ben	McLeish	Sep 2005	76	Clinical	Various Likert Scales	PCL
4	LaJoie et al.	LaJoie	Sep 2006	101	Community	4 items (3 dichotomous)	PCL
5	Hurricane Katrina Community Advisory Group	Kessler, Galea et al.	Jan–Mar 2006	1043	Community	10 dichotomous items	K6
6	Resilience In Survivors of Katrina (RISK) study	Paxson, Rhodes, Waters	May 2006–Mar 2007	402	Student	13 dichotomous items	K6