Credibility of neuropsychological performances of Persian Gulf War veterans and military control subjects participating in clinical epidemiological research

Joseph Barrash; Natalie L Denburg; David J Moser; Robert F Woolson; Amy J Schumacher; Bradley N Doebbeling

doi:10.7205/MILMED.172.7.697

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Credibility of neuropsychological performances of Persian Gulf War veterans and military control subjects participating in clinical epidemiological research

Journal article

Open access

Peer reviewed

Credibility of neuropsychological performances of Persian Gulf War veterans and military control subjects participating in clinical epidemiological research

Joseph Barrash, Natalie L Denburg, David J Moser, Robert F Woolson, Amy J Schumacher and Bradley N Doebbeling

Military medicine, Vol.172(7), pp.697-707

07/2007

DOI: 10.7205/MILMED.172.7.697

PMID: 17691681

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Abstract

We investigated whether Persian Gulf War veterans (GWVs) were more likely than Persian Gulf War-era veterans deployed elsewhere (GEVs) to have noncredible neuropsychological examinations. A total of 301 GWVs and 99 GEVs underwent neuropsychological testing. The credibility of 173 examinations showing impairment was evaluated based on test performances, clinical background, psychometric measures, and other self-report data. All 11 examinations judged less than fully credible by one neuropsychologist, plus 19 examinations judged impaired but credible, were then evaluated independently by two more neuropsychologists. Noncredibility was judged with excellent reliability (93% agreement). Seven examinations were judged noncredible. Rates of noncredibility did not differ between GWVs (1%) and GEVs (4%). The pattern of associations of noncredible examinations with cognitive, psychological, and clinical variables generally indicated defective neuropsychological scores, with no coherent pattern, and personality disorder. Findings supported the validity of noncredibility judgments and suggested that noncredible examinations are not a significant problem in neuropsychological investigations of GWVs.

Veterans

Mental Health

United States - epidemiology

Epidemiologic Studies

Military Personnel

Humans

Stress Disorders, Post-Traumatic - epidemiology

Male

Psychometrics

Neuropsychological Tests

Gulf War

Stress Disorders, Post-Traumatic - diagnosis

Adult

Female

Mental Disorders - diagnosis

Military Psychiatry

Details

Title: Subtitle: Credibility of neuropsychological performances of Persian Gulf War veterans and military control subjects participating in clinical epidemiological research
Creators: Joseph Barrash - Department of Neurology, University of Iowa Carver College of Medicine, Iowa City, IA 52242, USA
Natalie L Denburg
David J Moser
Robert F Woolson
Amy J Schumacher
Bradley N Doebbeling
Resource Type: Journal article
Publication Details: Military medicine, Vol.172(7), pp.697-707
DOI: 10.7205/MILMED.172.7.697
PMID: 17691681
NLM abbreviation: Mil Med
ISSN: 0026-4075
eISSN: 1930-613X
Publisher: England
Grant note: M01-RR-59 / NCRR NIH HHS
Language: English
Date published: 07/2007
Academic Unit: Statistics and Actuarial Science; Neurology; Psychiatry; Epidemiology; Psychological and Brain Sciences; Iowa Neuroscience Institute; Biostatistics; Nursing; Medicine Administration
Record Identifier: 9984003926602771

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