Stress rate revised for Vietnam vets

Inspired by a long-standing controversy over estimates of the number of psychiatric casualties among Vietnam veterans, a research team has determined that overall, about 19 percent of those military personnel developed a serious war-related stress disorder. Furthermore, half of that group still suffered from the condition, post-traumatic stress disorder (PTSD), 11 to 12 years after the war ended in 1975, say psychiatric epidemiologist Bruce P.