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J Affect Disord. 2017 Dec 1;223:17-19. doi: 10.1016/j.jad.2017.07.006. Epub 2017 Jul 6.

A comparison of ICD-11 and DSM criteria for posttraumatic stress disorder in two national samples of U.S. military veterans.

Author information

1
University of North Carolina at Greensboro, Psychology Department, PO Box 26170, Greensboro, NC 27402, United States. Electronic address: bewisco@uncg.edu.
2
National Center for PTSD, VA Boston Healthcare System/Boston University School of Medicine, United States.
3
National Center for PTSD, VA Connecticut Healthcare System/Yale University, United States.

Abstract

BACKGROUND:

The proposed ICD-11 criteria for posttraumatic stress disorder (PTSD) differ substantially from the DSM-5. ICD-11 eliminated several PTSD symptoms thought to be nonspecific, with the goal of reducing psychiatric comorbidities. However, this change also results in a narrower PTSD definition that may fail to capture individuals with clinically significant PTSD. The purpose of the current study was to compare prevalence and psychiatric comorbidities of DSM (IV/5) and ICD-11 PTSD.

METHODS:

We evaluated concordance between DSM (IV/5) and ICD-11 PTSD diagnoses in a web survey of two nationally representative samples of U.S. military veterans (ns = 3517 and 1484). Lifetime and past-month PTSD symptoms were assessed with the DSM-IV-based PTSD Checklist-Specific Stressor version and the DSM-5-based PTSD Checklist-5. Psychiatric comorbidities were assessed using MINI Neuropsychiatric Interview modules.

RESULTS:

A significantly greater proportion of veterans met criteria for lifetime and past-month PTSD under DSM-IV/5 than under ICD-11. 21.8-35.9% of those who met criteria under DSM IV/5 did not meet under ICD-11, whereas only 2.4-7.1% of those who met under ICD-11 did not meet under DSM-IV/5. Psychiatric comorbidities did not significantly differ between DSM-IV/5 and ICD-11.

LIMITATIONS:

This study relied upon self-report measures of PTSD, distress/impairment, and psychiatric comorbidities.

CONCLUSIONS:

The proposed ICD-11 criteria identify fewer PTSD cases than DSM-IV/5 without reducing psychiatric comorbidities. Veterans with clinically significant PTSD symptoms may not meet ICD-11 PTSD criteria, possibly affecting eligibility for healthcare, disability, and other services. The ICD-11 criteria could be revised to capture more PTSD cases before ICD-11 is published in 2018.

PMID:
28715723
DOI:
10.1016/j.jad.2017.07.006
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