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Observational Study
. 2020 Dec 14;43(12):zsaa119.
doi: 10.1093/sleep/zsaa119.

Prevalence rates and correlates of insomnia disorder in post-9/11 veterans enrolling in VA healthcare

Peter J Colvonen  1   2   3   4 , Erin Almklov  1 , Jessica C Tripp  1   2 , Christi S Ulmer  5   6 , James O E Pittman  1   2   3 , Niloofar Afari  1   2   3
Affiliations
Observational Study

Prevalence rates and correlates of insomnia disorder in post-9/11 veterans enrolling in VA healthcare

Peter J Colvonen et al. Sleep. .

Abstract

Study objectives: Post-9/11 veterans are particularly vulnerable to insomnia disorder. Having accurate prevalence rates of insomnia disorder in this relatively young, diverse population, is vital to determine the resources needed to identify and treat insomnia disorder. However, there are no accurate prevalence rates for insomnia disorder in post-9/11 veterans enrolling in the VA Healthcare System (VHA). We present accurate prevalence of insomnia disorder, and correlates, in a large sample of post-9/11 veterans enrolling in a VHA.

Methods: This was an observational study of 5,552 post-9/11 veterans newly enrolling for health care in a VHA. Data were collected using VA eScreening. Insomnia diagnosis was determined using a clinical cutoff score of ≥ 11 on the Insomnia Severity Index. Measures also included sociodemographic, service history, posttraumatic stress disorder (PTSD), depression, suicidal ideation, alcohol misuse, military sexual trauma, traumatic brain injury (TBI), and pain intensity.

Results: About 57.2% of the sample population had insomnia disorder. Our sample was nationally representative for age, sex, ethnicity, branch of the military, and race. The sample also was at high-risk for a host of clinical disorders, including PTSD, TBI, and pain; all of which showed higher rates of insomnia disorder (93.3%, 77.7%, and 69.6%, respectively).

Conclusions: The findings suggest alarmingly high rates of insomnia disorder in this population. Examining and treating insomnia disorder, especially in the context of co-occurring disorders (e.g. PTSD), will be a necessity in the future.

Keywords: co-occurring disorders; insomnia; prevalence rates.

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Conflict of interest statement

Non-Financial disclosure: None of the authors have any competing financial interests to disclose.

Figures

Figure 1.
Figure 1.
Percentage of clinical correlates by insomnia disorder.
See this image and copyright information in PMC

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