Study concept and design: Powell, T. Smith, Bell, B. Smith, Boyko, Hooper, Gackstetter, Hoge, LeardMann.
Acquisition of data: T. Smith, B. Smith, LeardMann.
Analysis and interpretation of data: Powell, T. Smith, Bell, B. Smith, Boyko, Hooper, Gackstetter, Ghamsary, Hoge, LeardMann.
Drafting of the manuscript: Powell, T. Smith, B. Smith, LeardMann.
Critical revision of the manuscript for important intellectual content: Powell, T. Smith, Bell, B. Smith, Boyko, Hooper, Gackstetter, Ghamsary, Hoge, LeardMann.
Statistical analysis: Powell, T. Smith, B. Smith, Gackstetter, Ghamsary, LeardMann.
Administrative, technical, or material support: T. Smith, Gackstetter, LeardMann.
Study supervision: T. Smith, B. Smith, Boyko, Hoge, LeardMann.
Conflict of Interest Disclosures: All authors have completed and submitted the ICMJE Form for Disclosure of Potential Conflicts of Interest. Dr Boyko reports receipt of payment for a lecture from Merck. The other authors report no disclosures.
Funding/Support: This work represents report 12-53, supported by the Department of Defense, under work unit no. 60002. The Millennium Cohort Study is funded through the Military Operational Medicine Research Program of the US Army Medical Research and Materiel Command, Fort Detrick, Maryland. Dr Boyko’s effort in this project was supported by VA Puget Sound Health Care System.
Role of the Sponsor: The funding organizations had no role in 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.
Group Information: In addition to the authors, the Millennium Cohort Study Team includes Melissa Bagnell, MPH; Nancy Crum-Cianflone, MD, MPH; James Davies, BS; Nisara Granado, MPH, PhD; Jaime Horton, MPH; Andrea Ippolito, MPH; Isabel Jacobson, MPH; Kelly Jones, MPH; William Lee, BS; Michelle Linfesty, BA; Gordon Lynch; Hope McMaster, PhD; Sheila Medina-Torne, MPH; Christopher Phillips, MD, MPH; Kari Sausedo, MA; Emma Schaller, MPH; Amber Seelig, MPH; Beverly Sheppard, BS; Donald Slymen, PhD; Steven Speigle; Jennifer Walstrom; John Wesner, MPH; Martin White, MPH; James Whitmer; and Charlene Wong, MPH, Department of Deployment Health Research, Naval Health Research Center, San Diego, California.
Disclaimer: The views expressed in this article are those of the authors and do not reflect the official policy or position of the Department of the Navy, Department of the Army, Department of the Air Force, Department of Defense, Department of Veterans Affairs, or the US government.
Additional Contributions: We also thank the professionals from the US Army Medical Research and Materiel Command, Fort Detrick, Maryland, especially those from the Military Operational Medicine Research Program, Fort Detrick, Maryland; Scott L. Seggerman, MS, Management Information Division, Defense Manpower Data Center, Monterey, California; and the Millennium Cohort Study participants. None of these individuals were compensated in association with their contributions to this study.
Correction: This article was corrected online August 7, 2013 for errors to footnote c in Table 1 and for errors to footnotes b, c, and f in Table 3.