Table 1.

PTSD Items Administered Using D-PTSD Scale in NVVRS

DSM-III-R Symptoms Occurring in Last 30 Days Criteria		Male Vietnam Theater Veterans			Male Vietnam Era Controls
		N	Prev (%)	95% CI	N	Prev (%)	95% CI
B	Unpleasant memories	1183	2.7	1.7–3.8	410	1.1	0.0–2.3
	Disturbing memories	1182	3.4	2.1–4.6	406	1.8	0.0–3.5
	Felt as if event recurring	1181	3.2	1.9–4.5	406	1.0	0.0–2.3
	Flashbacks	1179	1.8	0.9–2.7	404	0.5	0.0–1.3
	Suddenly feeling anxious/fearful/panicky	1187	3.3	2.0–4.7	407	0.3	0.0–0.5
C	Tried not to think about previous events	1179	3.1	1.9–4.4	408	0.7	0.0–1.5
	Avoided feelings about previous events	1185	2.8	1.6–4.0	403	0.3	0.0–1.0
	Avoided certain places or activities	1190	1.3	0.6–2.1	410	1.3	0.0–2.8
	Could not remember portions of traumatic event	1169	1.8	0.8–2.8	406	0.0	0.0–0.1
	Lost interest in activities	1188	2.8	1.6–4.0	410	1.2	0.0–2.5
	Stopped caring about activities	1190	2.0	1.0–3.0	411	1.4	0.0–2.9
	Felt cut off from people	1186	4.1	2.6–5.5	410	1.4	0.0–2.9
	Felt numb or empty inside	1191	2.3	1.2–3.4	411	1.2	0.0–2.4
	Could not feel things anymore	1189	2.5	1.4–3.6	408	0.6	0.0–1.6
D	Difficulty falling asleep	1182	5.9	4.1–7.6	410	2.2	0.5–3.9
	Felt as if you might get out of control	1185	1.5	0.7–2.3	406	1.0	0.0–2.2
	Minor events bothered you/made you angry	1189	3.1	1.9–4.3	411	2.6	0.1–4.7
	Trouble concentrating	1192	2.8	1.7–3.9	412	1.2	0.1–2.3
	Felt you had to stay on guard	1190	3.4	2.1–4.7	409	2.0	0.1–3.8
	Spells or panic attacks due to previous memory	1175	0.9	0.3–1.4	407	0.0	NA
	Unexpected noises startle you	1190	3.6	2.2–5.0	412	1.1	0.0–2.3

1. Confidence Intervals that were less than 0 were truncated to 0.