... National Psychiatric Morbidity surveys of Great Brit-ain initial findings from the household survey. Psychol Med1997, 27(4):775-789.29. David AS, Farrin L, Hull L, Unwin C, Wessely S, Wykes T: ... problems, in contrast toa combined prevalence of 18.3% in this cohort. The differ-ence may be due to changes in the culture of drinking in the UK in general and the Armed Forces in the last ... in thetwo studies. Prevalence of PTSD in this study is higherthan those reported in 1995 but the increase in the UK hasbeen modest. Finally, Ismail et al [32] reported prevalence of somatoform...