Center for Medical Ethics and Health Policy Staff Publications

Language

English

Publication Date

12-1-2022

Journal

JAMA Network Open

DOI

10.1001/jamanetworkopen.2022.45272

PMID

36472870

PMCID

PMC9856484

PubMedCentral® Posted Date

12-6-2022

PubMedCentral® Full Text Version

Post-print

Abstract

Importance: Few evidence-based treatments are available for Gulf War illness (GWI). Behavioral treatments that target factors known to maintain the disability from GWI, such as problem-solving impairment, may be beneficial. Problem-solving treatment (PST) targets problem-solving impairment and is an evidence-based treatment for other conditions.

Objective: To examine the efficacy of PST to reduce disability, problem-solving impairment, and physical symptoms in GWI.

Design, setting, and participants: This multicenter randomized clinical trial conducted in the US Department of Veterans Affairs compared PST with health education in a volunteer sample of 511 Gulf War veterans with GWI and disability (January 1, 2015, to September 1, 2019); outcomes were assessed at 12 weeks and 6 months. Statistical analysis was conducted between January 1, 2019, and December 31, 2020.

Interventions: Problem-solving treatment taught skills to improve problem-solving. Health education provided didactic health information. Both were delivered by telephone weekly for 12 weeks.

Main outcomes and measures: The primary outcome was reduction from baseline to 12 weeks in self-report of disability (World Health Organization Disability Assessment Schedule). Secondary outcomes were reductions in self-report of problem-solving impairment and objective problem-solving. Exploratory outcomes were reductions in pain, pain disability, and fatigue.

Results: A total of 268 veterans (mean [SD] age, 52.9 [7.3] years; 88.4% male; 66.8% White) were randomized to PST (n = 135) or health education (n = 133). Most participants completed all 12 sessions of PST (114 of 135 [84.4%]) and health education (120 of 133 [90.2%]). No difference was found between groups in reductions in disability at the end of treatment. Results suggested that PST reduced problem-solving impairment (moderate effect, 0.42; P = .01) and disability at 6 months (moderate effect, 0.39; P = .06) compared with health education.

Conclusions and relevance: In this randomized clinical trial of the efficacy of PST for GWI, no difference was found between groups in reduction in disability at 12 weeks. Problem-solving treatment had high adherence and reduced problem-solving impairment and potentially reduced disability at 6 months compared with health education. These findings should be confirmed in future studies.

Trial registration: ClinicalTrials.gov Identifier: NCT02161133.

Keywords

United States, Male, Humans, Middle Aged, Female, Gulf War, Self Report, Persian Gulf Syndrome, Health Education, Pain

Published Open-Access

yes

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