Attention A T users. To access the menus on this page please perform the following steps. 1. Please switch auto forms mode to off. 2. Hit enter to expand a main menu option (Health, Benefits, etc). 3. To enter and activate the submenu links, hit the down arrow. You will now be able to tab or arrow up or down through the submenu options to access/activate the submenu links.

Seattle Epidemiologic Research and Information Center (ERIC)


Quick Links

Veterans Crisis Line Badge
My healthevet badge
EBenefits Badge

National Vietnam Veterans Longitudinal Study Registry - History

History of NVVRS and NVVLS
In the early 1980s, there was concern regarding the health and well-being of Veterans who served during the Vietnam era. In response to these concerns, Congress passed Public Law 98-60 in 1983, which mandated that the U.S. Department of Veterans Affairs (VA), contract for an independent national study looking at the frequency and effects of post-traumatic stress disorder (PTSD), and related postwar psychological issues. In 1984, the contract was awarded to the Research Triangle Institute (RTI), a for-profit research group, and the study was named the National Vietnam Veterans Readjustment Study (NVVRS). The NVVRS Report of Findings are available here.    

To determine the frequency and effects of PTSD across a 25 year period, Congress passed Public Law 106-419 in 2000.  This required the VA to contract a follow up study to the NVVRS, which was called the National Vietnam Veterans Longitudinal Study (NVVLS) and awarded to Abt, a for-profit research group.  This follow-up study filled a critical gap in understanding how military service affected adjustment later in life.  A total of 1,450 Veterans participated in at least one of the NVVLS study phases, which included a paper-and-pencil health questionnaire, telephone health interview, and a telephone mental health interview conducted by a professional clinical interviewer. 

Formation of the NVVLS Registry
Veterans who participated in both NVVRS and NVVLS, and the data they provided are now part of the NVVLS Registry.  The NVVLS Registry is housed at the Seattle Epidemiologic Research Information Center (ERIC) in Seattle, WA. The Center is one of several within the Cooperative Studies Program (CSP) of the Department of Veterans Affairs (VA) Office of Research and Development (ORD). The Seattle ERIC acquired stewardship of the NVVRS and NVVLS data in April of 2015, and modified it to function as a registry.

The NVVLS Registry is a closed cohort, and is not currently recruiting new members.