Publications

The following manuscripts have been published or are currently in press. Listings are in chronological order, unless otherwise noted.

Research Publication 2
Title Publication Date/Location
New-Onset Asthma and Combat Deployment: Findings from the Millennium Cohort Study American Journal of Epidemiology 2018 Oct 1;187(10):2136-2144

Rivera AC, Powell TM, Boyko EJ, Lee RU, Faix DJ, Luxton DD, and Rull RP

New-onset asthma developed in 2.7% of men and 4.6% of women during the follow-up period, among participants without a prior diagnosis of asthma at baseline. Compared with those who did not deploy, those who deployed with combat experience were 24-30% more likely to develop asthma, even after controlling for smoking status and other covariates. No elevated risk was observed for deployers who did not experience combat. Additional risk factors for asthma among both men and women included Hispanic ethnicity, overweight or obesity, Army service, stressful life events, PTSD, and health care or other technical occupations.

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When Epidemiology Meets the Internet: Web-Based Surveys in the Millennium Cohort Study American Journal of Epidemiology 2007 Nov;166(11):1345-54

Smith B, Smith TC, Gray GC, Ryan MAK, for the Millennium Cohort Study Team

Optimal use of the Internet - with minimal response bias, maximum cost-savings, and improved data - is highlighted.

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A Decade of War: Prospective Trajectories of Posttraumatic Stress Disorder Symptoms Among Deployed US Military Personnel and the Influence of Combat Exposure Reply American Journal of Epidemiology 2018 May 4;187(7):1570-1575

Donoho CJ, Bonanno GA, Porter B, Kearney L, and Powell TM

Details the reasons that the results found in "A decade of war: Prospective trajectories of post-traumatic stress disorder symptoms among deployed US military personnel and the influence of combat exposure" are not likely to be confounded by mefloquine side effects.

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Disordered Eating and Weight Changes After Deployment: Longitudinal Assessment of a Large US Military Cohort American Journal of Epidemiology 2009 Feb;169(4):415-27

Jacobson IG, Smith TC, Smith B, Keel PK, Amoroso PJ, Wells TS, Bathalon GP, Boyko EJ, Ryan MAK for the Millennium Cohort Study Team

Deployed women who reported combat exposures represent a subgroup at higher risk for developing eating problems and weight loss postdeployment compared with deployed women who did not report combat exposures.

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Newly Reported Respiratory Symptoms and Conditions Among Military Personnel Deployed to Iraq and Afghanistan: A Prospective Population-Based Study American Journal of Epidemiology 2009 Dec;170(11):1433-42

Smith B, Wong CA, Smith TC, Boyko EJ, Gackstetter GD, Ryan MAK, for the Millennium Cohort Study Team

Elevated risk for self-reported respiratory symptoms was found among Army and Marine Corps personnel deployed in support of operations in Iraq and Afghanistan. No increased risk for self-reported asthma, bronchitis, or emphysema was found.

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Prospective Evaluation of Mental Health and Deployment Experience Among Women in the US Military American Journal of Epidemiology 2012;176(2):135-45

Seelig AD, Jacobson IG, Smith B, Hooper TI, Gackstetter GG, Ryan MAK, Wells TS, MacDermid Wadsworth S, Smith TC, for the Millennium Cohort Study Team

Women with reported combat exposures were more likely to have mental health symptoms than women who deployed without combat associated exposures and women who never deployed.

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Racial, Ethnic, and Sex Disparities in Mental Health Among U.S. Service Members and Veterans: Findings from the Millennium Cohort Study American Journal of Epidemiology 2024 Feb 5;193(3):500-515 | doi: 10.1093/aje/kwad221

Sharifian N, Kolaja CA, LeardMann CA, Castañeda SF, Carey FR, Seay JS, Carlton KN, Rull RP, Millennium Cohort Study Team

Racial, ethnic, and sex disparities in mental health among service members and veterans persist, even after accounting for sociodemographic, military, health-related and social support factors. Despite increased availability to care among military populations, culturally relevant and targeted outreach are still needed to address these disparities.

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Epidemiology of Inflammatory Bowel Disease Among Participants of the Millennium Cohort: Incidence, Deployment-Related Risk Factors, and Antecedent Episodes of Infectious Gastroenteritis Alimentary Pharmacology & Therapeutics 2017 Apr;45(8):1115-1127

Porter CK, Welsh M, Riddle MS, Nieh C, BoykoEJ, Gackstetter GD, Hooper TI

This study describes the incidence of and risk factors for two pathotypes of inflammable bowel disease (IBD), Crohn’s Disease (CD) and ulcerative colitis (UC) among Millennium Cohort Study participants using survey responses as well as data from post-deployment health assessments and medical encounters in the Military Health System. We observed that CD risk predictors included current smoking, two life stressors (vs. none), and prior irritable bowel syndrome. For UC, a dose-response relationship between the risk of UC and an increasing number of life stressors was observed. Antecedent infectious gastroenteritis was associated with an almost three-fold increase in risk in UC, but was not associated with CD. Stressful conditions along with infectious gastroenteritis are usual features of any deployment operation and may play a role in the development of IBD. However, observed differences in risk factors for UC and CD warrant further investigation.

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Smokeless Tobacco Use Related to Military Deployment, Cigarettes, and Mental Health Symptoms in a Large, Prospective Cohort Study Among US Service Members Addiction 2012 May;107(5):983-994

Hermes ED, Wells TS, Smith B, Boyko EJ, Gackstetter GD, Miller SC, Smith TC, for the Millennium Cohort Study Team

Chronic use of smokeless tobacco has been linked to poor military training performance, early discharge, and a host of medical problems from cancer to heart disease. Smokeless tobacco initiation occurred in 1.9% and persistent use in 8.9% of Millennium Cohort participants. The study showed that deployment, combat exposure, smoking, and symptoms of posttraumatic stress disorder increased the risk for smokeless tobacco initiation, while deployment and combat exposure increased the risk for persistent use.

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The effect of combat exposure on financial problems International Review of Economics and Finance 2022 May;79:241-257

Ackerman A, Porter, B

This paper examined whether combat exposure led to new-onset financial problems and financial stress among 64,508 veterans using 2001-2016 data from the Millennium Cohort Study. The average predicted probability of developing a new major financial problem (such as bankruptcy) and greater financial stress increased 0.44% (21% relative to the mean probability) following a single combat exposure and increased 0.90% (43% relative to the mean probability) following multiple combat exposures. The likelihood of financial decline resulting from combat exposure were greater for veterans with poorer pre-deployment mental or physical health, veterans in enlisted ranks, and younger veterans between the ages of 26 and 36. These results translate to a crude cost estimate of lost productivity of at least $41 million and up to 3,629 bankruptcies for the 2.7 million veterans (1.34 per 1,000) deployed from 2001 through 2016.

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