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Seattle Epidemiologic Research and Information Center (ERIC)


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Vietnam-Era Twin Registry Scientific Findings


For a complete list of VET Registry Publications, download this PDF file.

Research Papers

Prevalence of Post-Traumatic Stress Disorder in Aging Vietnam-Era Veterans: Veterans Administration Cooperative Study 569: Course and Consequences of Post-Traumatic Stress Disorder in Vietnam-Era Veteran Twins
The results of this VET Registry research project were published in the March 2016 edition of the American Journal of Geriatric Psychiatry. The journal version isn't available to the general public due to their copyright policy, but restricted access is available through the PubMed website.   

Another option is to read this manuscript which is the final version of the paper before it was submitted to the Journal. These are Figures 1 and 2 from the manuscript.                             

Citation for the paper: Am J Geriatr Psychiatry. 2016 Mar;24(3):181-91. doi: 10.1016/j.jagp.2015.05.004. Epub 2015 May 16


Below are links to the VET Registry’s newsletter, The Twin Times. These newsletters include information on selected studies, researchers, healthy advice, and VET Registry staff.

1989     1991     1996     1999     2003     2008    2010    2012     2014    2016

These are large files and may take a long time to download depending on your internet connection.  

Focus Group Findings

The VET Registry held a series of focus groups in 2015-2017 to get direct feedback from VET Registry members. Findings from the focus groups are summarized below. 

2015-2016     2017   



If interested, the VET Registry can provide copies of any scientific article based on VET Registry studies. Please Contact Us to request articles. The Registry will either mail the requested articles or explain to obtain a copy from appropriate sources based on copyright laws and VA regulations.