Cited by 84Posttraumatic Stress Disorder ResearchMigration, Health and TraumaTraumatic Brain Injury Research

A Decade of War: Prospective Trajectories of Posttraumatic Stress Disorder Symptoms Among Deployed US Military Personnel and the Influence of Combat Exposure

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Donoho, Carrie J, Bonanno, George A, Porter, Ben, Kearney, Lauren, Powell, Teresa M·2017·American Journal of Epidemiology

Abstract

Posttraumatic stress disorder (PTSD) is a common psychiatric disorder among service members and veterans. The clinical course of PTSD varies between individuals, and patterns of symptom development have yet to be clearly delineated. Previous studies have been limited by convenience sampling, short follow-up periods, and the inability to account for combat-related trauma. To determine the trajectories of PTSD symptoms among deployed military personnel with and without combat exposure, we used data from a population-based representative sample of 8,178 US service members who participated in the Millennium Cohort Study from 2001 to 2011. Using latent growth mixture modeling, trajectories of PTSD symptoms were determined in the total sample, as well as in individuals with and without combat exposure, respectively. Overall, 4 trajectories of PTSD were characterized: resilient, pre-existing, new-onset, and moderate stable. Across all trajectories, combat-deployed service members diverged from non-combat-deployed service members, even after a single deployment. The former also generally had higher PTSD symptoms. Based on the models, nearly 90% of those without combat exposure remained resilient over the 10-year period, compared with 80% of those with combat exposure. Findings demonstrate that although the clinical course of PTSD symptoms shows heterogeneous patterns of development, combat exposure is uniformly associated with poor mental health.

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  • Most people are resilient in the face of major trauma - possibly up to 80% returning to previous levels of psychological functioning.

    “An unexpected story is that most people are resilient in the face of major trauma – possibly up to 80% returning to previous levels of psychological functioning (Bonanno et al., 2011; Donoho et al., 2017) although the exact percentage is debated (Infurna and Luthar, 2016).”

    From More than a feeling: A unified view of stress measurement for population science (2018) · cites this paper as Donoho et al., 2017

    The Results report that 80.7% of combat-deployed personnel belonged to a resilient group whose PTSD symptoms were low before deployment and remained low throughout the study. This supports the approximate 80% figure for that population, but the paper does not establish that 80% of people exposed to major trauma generally return to previous levels of psychological functioning; it measures PTSD symptom trajectories in deployed service members. (LLM, conf=0.88)

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Authors
Donoho, C. J., Bonanno, G. A., Porter, B., Kearney, L., & Powell, T. M.
Affiliations
  • Uniformed Services University of the Health Sciences (US)
  • Columbia University (US)
  • Naval Health Research Center (US)
Corresponding author
Donoho, Carrie J
Venue
American Journal of Epidemiology
Published
2017-09-27
Volume
186
Issue
12
Pages
1310-1318
ISSN
  • 0002-9262 (ISSN-L)
  • 1476-6256
OpenAlex
W2759124589
Cited by
84
References
26
Citations by year
2026: 7 · 2025: 9 · 2024: 5 · 2023: 10 · 2022: 13 · 2021: 12 · 2020: 7 · 2019: 5 · 2018: 15 · 2017: 1
FWCI
9.47
Type
journal article
Language
en
Open access
Licence
public-domain
Locations
  • American Journal of Epidemiology (publishedVersion, public-domain)
  • PubMed (publishedVersion)
Funders
US Army Medical Research and Materiel Command, Fort Detrick, Maryland
Topics
  • Social Sciences › Psychology › Clinical Psychology › Posttraumatic Stress Disorder Research
  • Social Sciences › Psychology › Clinical Psychology › Migration, Health and Trauma
  • Health Sciences › Medicine › Epidemiology › Traumatic Brain Injury Research
Keywords
post-traumatic stress disorder, PTSD symptom trajectories, combat exposure, military deployment, Millennium Cohort Study, growth mixture modeling, resilience, war injuries, military mental health
MeSH terms
Adult, Combat Disorders, Female, Humans, Longitudinal Studies, Male, Military Personnel, Prospective Studies, Psychiatric Status Rating Scales, Risk Factors, Socioeconomic Factors, Stress Disorders, Post-Traumatic, United States, Veterans, Health Behavior, Iraq War, 2003-2011, Resilience, Psychological, Afghan Campaign 2001-

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