Table 1.

Prevalence of PTSD in military personnel and veterans

Country	Method	Population	Sample Size (n)	Time after return	Prevalence (%)
Dutch [10]	DSM-IV	Military personnel returning from deployment to Afghanistan	994	6 months	8.9
USA [11]	DSM-IV	Military personnel returning from deployment to Iraq	1560	4 months	16.8
UK [11]	DSM-IV	Military personnel returning from deployment to Iraq	313	12 months	6.7
USA [12]	DSM-IV	Navy and Marine Corps personnel returning from deployment to Iraq, Afghanistan, or Kuwait	31,534	6 months	5.4
USA [13]	ICD-9-CM	Military personnel returning from deployment to Iraq	3403	1–6 months	16.3
USA [14]	DSM-IV	Military personnel deployed in support of the conflicts in Iraq and Afghanistan	22,630	5 years	8.1