Submitted for Publication: November 20, 2014; final revision received April 13, 2015; accepted April 16, 2015.
Published Online: July 22, 2015. doi:10.1001/jamapsychiatry.2015.0803.
Study concept and design: Marmar, Schlenger, Kulka.
Acquisition, analysis, or interpretation of data: All authors.
Drafting of the manuscript: Marmar, Schlenger, Henn-Haase, Purchia, Corry, Ho, Horesh, Shalev.
Critical revision of the manuscript for important intellectual content: Marmar, Schlenger, Henn-Haase, Qian, Purchia, Li, Corry, Williams, Horesh, Karstoft, Shalev, Kulka.
Statistical analysis: Schlenger, Qian, Li, Williams, Ho, Horesh, Shalev, Kulka.
Obtained funding: Schlenger.
Administrative, technical, or material support: Marmar, Schlenger, Purchia, Corry, Williams, Ho, Kulka.
Study supervision: Marmar, Schlenger, Henn-Haase, Purchia.
Conflict of Interest Disclosures: None reported.
Funding/Support: The National Vietnam Veterans Longitudinal Study (NVVLS) was funded and contracted by the Department of Veterans Affairs under contract GS-10F-0086K.
Role of the Funder/Sponsor: All aspects of the study, including the design and conduct of the study; collection, management, analysis, and interpretation of the data; preparation, review, or approval of the manuscript; and decision to submit the manuscript for publication, were approved by the Department of Veterans Affairs.
Additional Contributions: The NVVLS is a follow-up of the National Vietnam Veterans Readjustment Study (NVVRS), which was conducted more than 25 years ago. We thank the participants of the NVVRS and NVVLS for their generous contributions to furthering science and improving care for veterans.