A psychosocial mediational model of homelessness among U.S. male and female veterans who served in Iraq and Afghanistan

An Evidence Map of the Women Veterans' Health Literature, 2016 to 2023: A Systematic Review

Importance

Women veterans are the fastest-growing veteran subpopulation in the US. Women veterans often experience military service-related health issues in addition to conditions common to all women. Because women veterans are more likely to receive care in the civilian setting than through the Department of Veterans Affairs (VA), all women's health clinicians should be equipped to provide patient-centered care for women veterans. The health care of women veterans requires evidence-based care informed by population-specific scientific literature. An updated evidence map evaluating women veteran-focused health literature is needed.

Objective

To map the scope and breadth of women veterans' health literature published from 2016 to 2023.

Evidence Review

In this systematic review, MEDLINE, Embase, and CINAHL Complete were searched for eligible articles published from 2016 to 2023. Articles reporting about US women veterans' health outcomes or on the experience of providing care to women veterans were included. Included articles were required to report patient-level outcomes that included either data for only women veterans or reported results separately for women veterans. Articles were grouped by primary focus area based on categories previously established by the VA Women's Health research agendas and prior evidence maps.

Findings

The volume of women veterans' health literature published between 2016 and 2023 of 932 articles was double that of the prior 8 years. The largest portion of this literature was focused on chronic medical conditions (137 articles [15%]), general mental health (203 articles [22%]), and interpersonal violence (121 articles 3[13%]). Areas of greatest growth included reproductive health (physical and mental), pain, suicide, and nonsuicidal self-injury. Additionally, emerging areas of inquiry were found, including military-related toxic exposures and harassment within the health care setting.

Conclusions and Relevance

In this systematic review of literature focused on the health of women veterans, the volume of literature was found to have doubled and expanded in important areas that aligned with VA research priorities. However, despite the growth in research related to women veterans, several important research gaps remain within this field of study. Research addressing health issues pertinent to a growing and aging women veterans' population will require rigorous research and program evaluations.

Scoping review of the role of social support in women Veterans' psychosocial and health outcomes

Women veterans are a steadily growing population and have unique military experiences (e.g., report high rates of sexual harassment and assault) that are impactful across the lifespan. High levels of positive social support have been linked to a range of positive outcomes in both civilian and military populations. However, research has not consistently explored social support and interpersonal functioning in women veterans, or as potential mechanisms of change within interventions for women veterans. This is a scoping review of peer-reviewed articles that evaluated social support. Articles with at least 10% women or formally evaluated sex or gender in reference to social support were included. A total of 69 studies evaluated social support in relation to women veterans' health outcomes. From a biopsychosocial perspective, social support is an important construct to examine relative to health care engagement and response. Limited research considered aging women veterans needs or focused on the intersectional identities of women veterans. Positive social support can have major physical and mental health benefits, yet limited research and disparate methodological approaches minimize the ability to draw conclusions on how social support can best be leveraged to support women veterans. Women veterans' roles and military experiences (e.g., increased likelihood of combat exposure) are changing and this population is aging. Research is needed to inform best practices for this growing segment of the veteran population.

Prevalence and Correlates of Food and/or Housing Instability among Men and Women Post-9/11 US Veterans

Food and/or housing instability (FHI) has been minimally examined in post-9/11 US veterans. A randomly selected nationally representative sample of men and women veterans (n = 38,633) from the post-9/11 US veteran population were mailed invitation letters to complete a survey on health and well-being. Principal component analysis and multivariable logistic regression were used to identify FHI's key constructs and correlates for 15,166 men and women respondents (9524 men, 5642 women). One-third of veterans reported FHI; it was significantly more likely among women than men (crude odds ratio = 1.31, 95% CI:1.21-1.41) and most prevalent post-service (64.2%). "Mental Health/Stress/Trauma", "Physical Health", and "Substance Use" were FHI's major constructs. In both sexes, significant adjusted associations (p < 0.01) were found between FHI and homelessness, depression, adverse childhood experiences, low social support, being enlisted, being non-deployed, living with seriously ill/disabled person(s), and living in dangerous neighborhoods. In men only, posttraumatic stress disorder (adjusted odds ratio (AOR) = 1.37, 95% CI:1.14-1.64), cholesterol level (elevated versus normal, AOR = 0.79, 95% CI:0.67-0.92), hypertension (AOR = 1.25, 95% CI:1.07-1.47), and illegal/street drug use (AOR = 1.28, 95% CI:1.10-1.49) were significant (p < 0.01). In women only, morbid obesity (AOR = 1.90, 95%CI:1.05-3.42) and diabetes (AOR = 1.53, 95% CI:1.06-2.20) were significant (p < 0.05). Interventions are needed that jointly target adverse food and housing, especially for post-9/11 veteran women and enlisted personnel.

The mediating role of social support in associations between childhood adversity, military sexual trauma, and homelessness in a nationally representative sample of US veterans

Among veterans, availability of social support and histories of military sexual trauma (MST) and/or adverse childhood experiences (ACEs) are particularly salient correlates of homelessness. Using path analyses, we investigated whether social support (i.e., interpersonal social support and community integration) would at least partially account for the relationships of MST and ACEs with any lifetime homelessness in a large, nationally representative sample of veterans (N = 4069, 9.8% female). Interpersonal social support and community integration partially explained the relationship between ACEs and any lifetime homelessness. However, they did not mediate the relationship between MST and any lifetime homelessness. Female veterans also reported higher trauma rates and lower perceived social support than male counterparts during correlational analyses. These results reinforce existing literature on the importance of research and interventions tailored to veterans with low social support and integration. Results have potential to inform interventions and policy for veterans experiencing and/or at risk for homelessness.

Prevalence, correlates, and mental health burden associated with homelessness in U.S. military veterans

BACKGROUND

Homelessness is a major public health problem among U.S. military veterans. However, contemporary, population-based data on the prevalence, correlates, and mental health burden of homelessness among veterans are lacking.

METHODS

Data were analyzed from the 2019-2020 National Health and Resilience in Veterans Study, a nationally representative survey of veterans (n = 4069). Analyses examined the prevalence and correlates of homelessness, as well as the independent associations between homelessness and current probable psychiatric conditions, suicidality, and functioning.

RESULTS

The lifetime prevalence of homelessness was 10.2% (95% confidence interval 9.3-11.2). More than 8-of-10 veterans reported experiencing their first episode of homelessness following military service, with a mean of 10.6 years post-discharge until onset (s.d. = 12.6). Adverse childhood experiences (ACEs), cumulative trauma burden, current household income, younger age, and drug use disorder emerged as the strongest correlates of homelessness (49% of total explained variance). Veterans with a history of homelessness had elevated odds of lifetime suicide attempt, attempting suicide two or more times, and past-year suicide ideation [odd ratios (ORs) 1.3-3.1]. They also had higher rates of current probable posttraumatic stress disorder, major depressive, generalized anxiety, and drug use disorders (ORs 1.7-2.4); and scored lower on measures of mental, physical, cognitive, psychosocial functioning (d = 0.11-0.15).

CONCLUSIONS

One in ten U.S. veterans has experienced homelessness, and these veterans represent a subpopulation at substantially heightened risk for poor mental health and suicide. ACEs were the strongest factor associated with homelessness, thus underscoring the importance of targeting early childhood adversities and their mental health consequences in prevention efforts for homelessness in this population.