This article on Post-Traumatic Stress Disorder (PTSD) examines the extensiveness of PTSD, and deficiencies in research material published on the topic. From the article: "Studies of the prevalence of post-traumatic stress disorder have appeared in the research literature with increasing frequency over the past ten years. These studies, while focusing often on the prevalence of PTSD in combat (e.g., Kulka et al., 1990), have also examined the rate of this disorder in the general population (Helzer et al., 1987), among survivors of a natural disaster (e.g., Mt. St. Helens; Shore et al., 1986), a technological disaster (e.g., Buffalo Creek; Gleser et al., 1981), and criminal victimization (e.g., Kilpatrick et al., 1985). In each study persistent mental health disturbance has been found among some of the people who have endured an extreme life experience. The purpose of this article on epidemiology is to provide a conceptual framework for understanding the findings on the prevalence of PTSD and to comment on some of the shortcomings of research in this area."
National Center for PTSD: http://www.ptsd.va.gov/
PTSD Research Quarterly (Fall 1990), v.1 no.3