Epidemiology is the study of health in populations to understand the causes and patterns of health and illness. The Epidemiology Program, a research division of VA’s Office of Public Health, conducts research studies and surveillance (the collection and analysis of data) on the health of Veterans.
Operation Enduring Freedom (OEF), Operation Iraqi Freedom (OIF) and Operation New Dawn (OND)
Longitudinal Health Study of Gulf War Era Veterans Researchers evaluated health data from 5,469 Gulf War-deployed Veterans and 3,353 Veterans who served elsewhere during the Gulf War. These Veterans participated in an initial survey in 1995 and a second survey in 2005.
Post War Mortality from Neurologic Diseases in Gulf War Veterans Researchers are investigating the risk of post-war mortality from neurological disease among 620,000 Gulf War Veterans and 750,000 non-Gulf War Veterans. Gulf War Veterans may be at increased risk for amyotrophic lateral sclerosis (ALS), multiple sclerosis, Parkinson's disease, or brain cancer.
Army Chemical Corps Vietnam-Era Veterans Health Study
Researchers are studying 4,000 Veterans who served in the U.S. Army Chemical Corps sometime between 1965-1973 to determine if high blood pressure (hypertension) and chronic obstructive pulmonary disease (COPD) are related to Agent Orange exposure during Vietnam.