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Latent dimensions of posttraumatic stress disorder and their relations with alcohol use disorder

  • Tracey L. BiehnEmail author
  • Ateka A. Contractor
  • Jon D. Elhai
  • Marijo Tamburrino
  • Thomas H. Fine
  • Gregory Cohen
  • Edwin Shirley
  • Philip K. Chan
  • Israel Liberzon
  • Joseph R. Calabrese
  • Sandro Galea
Original Paper

Abstract

Purpose

The objective of this study was to evaluate the relationship between factors of posttraumatic stress disorder (PTSD) and alcohol use disorder (AUD) using confirmatory factor analysis (CFA) in order to further our understanding of the substantial comorbidity between these two disorders.

Methods

CFA was used to examine which factors of PTSD’s dysphoria model were most related to AUD in a military sample. Ohio National Guard soldiers with a history of overseas deployment participated in the survey (n = 1215). Participants completed the PTSD Checklist and a 12-item survey from the National Survey on Drug Use used to diagnosis AUD.

Results

The results of the CFA indicated that a combined model of PTSD’s four factors and a single AUD factor fit the data very well. Correlations between PTSD’s factors and a latent AUD factor ranged from correlation coefficients of 0.258–0.285, with PTSD’s dysphoria factor demonstrating the strongest correlation. However, Wald tests of parameter constraints revealed that AUD was not more correlated with PTSD’s dysphoria than other PTSD factors.

Conclusions

All four factors of PTSD’s dysphoria model demonstrate comparable correlations with AUD. The role of dysphoria to the construct of PTSD is discussed.

Keywords

Posttraumatic stress disorder Alcohol use disorder Cormorbidity Confirmatory factor analysis 

Notes

Compliance with ethical standards

Financial support

This project was funded by the Department of Defense Congressionally Directed Medical Research Program W81XWH-O7-1-0409, the “Combat Mental Health Initiative.”

Disclosures

The authors have no perceived or actual conflicts of interest related to this project. The sponsor had no role in study design, data collection, analysis, interpretation of results, report writing or manuscript submission.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2015

Authors and Affiliations

  • Tracey L. Biehn
    • 1
    • 2
    Email author
  • Ateka A. Contractor
    • 2
    • 9
  • Jon D. Elhai
    • 2
    • 3
  • Marijo Tamburrino
    • 4
  • Thomas H. Fine
    • 4
  • Gregory Cohen
    • 5
  • Edwin Shirley
    • 6
  • Philip K. Chan
    • 6
  • Israel Liberzon
    • 7
  • Joseph R. Calabrese
    • 8
  • Sandro Galea
    • 5
  1. 1.St. Cloud VA Health Care SystemSt. CloudUSA
  2. 2.Department of PsychologyUniversity of ToledoToledoUSA
  3. 3.Department of PsychiatryUniversity of ToledoToledoUSA
  4. 4.Department of PsychiatryUniversity of ToledoToledoUSA
  5. 5.Mailman School of Public HealthColumbia UniversityNew YorkUSA
  6. 6.Department of PsychiatryCase Western Reserve University, University Hospitals Case Medical CenterClevelandUSA
  7. 7.Mental Health Service, VA Ann Arbor Health System, Department of PsychiatryUniversity of MichiganAnn ArborUSA
  8. 8.Department of PsychiatryCase Western Reserve UniversityClevelandUSA
  9. 9.VA Boston Healthcare System, Massachusetts Veterans Epidemiology Research and Information CenterBostonUSA

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