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Journal Article

Citation

Boulos D, Zamorski MA. BMJ Open 2015; 5(12): e008591.

Affiliation

Directorate of Mental Health, Canadian Forces Health Services Group Headquarters, Ottawa, Ontario, Canada Faculty of Medicine, Department of Family Medicine, University of Ottawa, Ottawa, Ontario, Canada.

Copyright

(Copyright © 2015, BMJ Publishing Group)

DOI

10.1136/bmjopen-2015-008591

PMID

26644121

PMCID

PMC4679995

Abstract

OBJECTIVE: Mental disorders in military personnel result in high rates of attrition. Military organisations have strengthened their mental health systems and attempted to overcome barriers to care in order to see better outcomes. This study investigated the roles of mental health services renewal and delay to care in Canadian Armed Forces (CAF) personnel diagnosed with mental disorders.

DESIGN: Administrative data were used to identify a retrospective cohort of 30,513 CAF personnel who deployed in support of the mission in Afghanistan. Study participants included 508 individuals with a mental disorder diagnosis identified from CAF medical records of a weighted, stratified random sample of 2014 individuals selected from the study cohort. Weighted Cox proportional hazards regression assessed the association of diagnosis era and delay to care with the outcome, after controlling for a broad range of potential confounders (eg, disorder severity, comorbidity). Taylor series linearisation methods and sample design weights were applied in generating descriptive and regression analysis statistics. PRIMARY OUTCOME: The outcome was release from military service for medical reasons, assessed using administrative data for the 508 individuals with a mental disorder diagnosis.

RESULTS: 17.5% (95% CI 16.0% to 19.0%) of the cohort had a mental disorder diagnosis after an Afghanistan-related deployment, of which 21.3% (95% CI 17.2% to 25.5%) had a medical release over a median follow-up of 3.5 years. Medical release risk was elevated for individuals diagnosed before 30 April 2008 relative to those with recent diagnoses (adjusted HR (aHR)=1.77 (95% CI 1.01 to 3.11)) and for individuals with a long delay to care (>21 months after return) relative to those with intermediate delays (8-21 months, aHR 2.47=(95% CI 1.28 to 4.76)).

CONCLUSIONS: Mental health services renewal in the CAF was associated with a better occupational outcome for those diagnosed with mental disorders. Longer delays to care were associated with a less favourable outcome.

Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://www.bmj.com/company/products-services/rights-and-licensing/


Language: en

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