Summary: This course provides the viewer with an overview of the science of epidemiology and related key concepts. After building this framework, the presenters discuss factors in the epidemiology of posttraumatic stress disorder (PTSD) in relation to how they influence prevalence estimates. An in-depth discussion of prevalence estimates of PTSD in different samples, particularly Veterans, is then provided. Presenters: Paula P. Schnurr, PhD and Jaimie L. Gradus, DSc
