Studies, Data, and Statistics
VA's Patient Care Services and research organizations conduct studies on the health issues affecting Veterans to better serve their needs.
This research program studies Veterans' health and environmental exposures to help improve health care practices and policies for Veterans.
Comparative Health Assessment Interview (CHAI)
This is a study on the effects of military service, deployment, and combat on the health and well-being of Veterans who served during Operation Enduring Freedom, Operation Iraqi Freedom, and Operation New Dawn.
New Generation Study
This is a study on the health and potential exposures of Veterans who served during Operation Enduring Freedom and Operation Iraqi Freedom.
VA is sponsoring several in-depth studies on possible health effects of open burn pits in military settings.
OEF/OIF/OND Veterans Quarterly Reports
Find out about the OEF/OIF/OND Veterans who have used VA health care.
Post-Deployment Surveillance Report
This biannual report contains data on various health conditions experienced by VA health care users
This is a study on the health and well-being of Vietnam era Veterans compared to similarly aged U.S. residents who never served in the military.
Project 112/SHAD Research
VA continues to study the long-term health effects of biological and chemical warfare tests from 1962 to 1974.
View published research on health effects of radiation exposure during military service.
War Related Illness and Injury Research
This study center focuses on deployment-related health conditions.
Agent Orange Research
Find out about ongoing and published research studies on Agent Orange exposure.
Gulf War Veterans' Illnesses Research
VA and other organizations conduct research to evaluate health effects of Gulf War service.
Reports on Gulf War Veterans’ Illnesses
View reports about health concerns of Gulf War Veterans.
Hepatitis C Veteran Data Reports
Learn about the Veterans Health Administration's care of Veterans with chronic hepatitis C.
HIV/AIDS Veteran Data Reports
Read reports on the Veterans Health Administration's care of Veterans with HIV/AIDS and HIV testing rates.
Household Emergency Preparedness
Research shows Veterans are at risk during public health emergencies.