Table 1. Demographic and clinical information for trauma-exposed victims with and without PTSD, follow-up of trauma-exposed victims with PTSD, and healthy controls.

	Trauma-exposed victims with PTSD (N=21)	Trauma-exposed victims without PTSD (N=17)	P	Follow-up of trauma-exposed victims with PTSD (N=11)	Healthy controls (N=22)	P*	P**	P***
Age(years)	40.86±12.26	35.64±11.91	0.53	42.09±12.79	40.23±12.54	0.53	0.76	0.43
Gender (M/F)	8/13	11/6	0.10	4/7	9/13	0.10	0.72	0.47
Educations (years)	11.24±3.60	12.71±4.06	0.40	10.09±3.91	14.05±2.59	0.40	0.65	0.95
ASDI (2 days post-accident)	15.48±5.51	8.76±3.13	<0.001			<0.001
CAPS (1 months post-accident)	39.95±19.48	10.89±5.27	<0.001			<0.001
CAPS (6 months post-accident)	33.48±14.32	8.26±3.98	<0.001			<0.001
CAPS (at diagnosis)	44.00±14.92			40.82±16.64
Mean time from accident to diagnosis (months)	2.24±2.00			4.18±2.49

^*for Trauma-exposed victims with PTSD versus Trauma-exposed victims without PTSD.

^**for Trauma-exposed victims with PTSD versus Healthy controls.

^***for Trauma-exposed victims without PTSD versus Healthy controls.

PTSD = posttraumatic stress disorder; ASDI = acute stress disorder inventory; CAPS = clinician-administered PTSD Scale.