Table 2.

PTSD Scales Administered to Entire NVVRS Sample

Scale	Criteria	Male Vietnam Theater Veterans			Male Vietnam Era Controls
		N	Prev (%)	95% CI	N	Prev (%)	95% CI
Mississippi Scale	Cutting-Score ≥ 107	1190	6.0	4.4–7.6	406	3.8	1.4–6.2
	Cutting-Score ≥ 94	1190	15.3	12.5–18.1	406	8.3	4.8–11.8
	Cutting-Score ≥ 89	1190	20.9	17.8–24.1	406	11.2	7.3–15.2
One Month D-PTSD (DSM-III-R)	All-Cause PTSD	1197	3.5	2.3–4.8	412	1.6	0.0–3.1
	Combat-Related PTSD	1197	3.3	2.1–4.6	412	0.0	0.0–0.3
Lifetime D-PTSD (DSM-III-R)	All-Cause PTSD	1197	8.9	6.9–10.8	412	4.6	2.2–7.1
	Combat-Related PTSD	1197	7.9	6.0–9.8	412	0.1	0.0–0.2