Background
Substance Use Disorder (SUD), Opioid Use Disorder (OUD), and Serious Mental Illness (SMI) are highly impacted by Social Determinants of Health as described in the Catalyst blog posts Read more about the impact of the Social Determinants of Health in our archived Catalyst blog posts “A Blueprint for Action: Addressing the Social Determinants of Health – Highlights From the 2021 Southern Nevada Substance Misuse and Overdose Prevention Summit”, “Recovery in Special Emphasis Populations: Leveling the Playing Field” and “Important Facts About Native American Heritage Month”. While the full impact of the various elements of the Social Determinants of Health has not been quantified and all of the potential solutions have not yet been discovered, two elements are highlighted here in observance of Hunger & Homelessness Awareness Week, November 13-21, 2021.

Research is beginning to inform the knowledge base so that effective responses for behavioral health providers on the front lines may be refined as they work to address the problem. One recent study examined food insecurity trajectories of homeless adults who participated in a housing intervention trial. Researchers wanted to find out if people receiving the intervention and having specific mental and substance disorders had predictable food insecurity trajectories. They identified four food insecurity trajectories: persistently high food insecurity, increasing food insecurity, decreasing food insecurity, and consistently low food insecurity. The participants in the study had at least one alcohol or other substance use disorder and at least one non-substance related mental disorder of the following: major depressive episode, mood disorder with psychotic features, substance disorder, and co-occurring disorder. The study found that of the four food trajectory alternatives, homeless participants with major depressive episode, mood disorder with psychotic features, substance disorder, or having co-occurring SUD or AUD and a non-substance-related mental disorder was highly associated with membership in the persistent food insecurity trajectory group (Lachaud et al., 2020). This important research confirms that simply providing housing is not enough to address the issue of homelessness and hunger and that more comprehensive programs, services, and resources are needed that combine mental health services with meeting the basic needs for food and housing security.
The Overall Scale of Hunger and Homelessness in the United States
According to the Hunger & Homelessness Awareness Week website, the facts are that in the U.S.:
- 2 Million American live below the poverty level
- 580,000 Americans are normless on any given night
- 44 million Americans risk suffering from hunger
- 1 in 6 American children live in poverty
These data do not reflect the living situations of only adults. Families with children are also included in those numbers. In fact almost 30% of homeless people are living in families with children as cited by the National Alliance to End Homelessness, and unaccompanied youth under age 25 comprise 6% of the general homeless population. The National Center on Family Homelessness estimates that 1 in 45 children – 1.6 million – experience homelessness each year in the U.S. During the 2011-2012 school year there were approximately 1,168,354 students who experienced homelessness and that the number represented a 10% increase from the year before and a 24% increase over a three year period (Education for Homeless Children and Youths Program Data Collection Summary – 2012 (PDF | 974 KB).
Certain populations are more at risk of homelessness than the general population in the U.S., with risk for homelessness significantly associated with gender, race, and ethnicity, with men and people of color being disproportionately affected compared to women and white people. Homelessness has been reduced drastically among some groups, such as military veterans. With a goal that aimed for systems ensuring that homelessness among veterans is rare, brief, and a single occurrence, rates of veteran homelessness have decreased by 39% since 2007 (National Alliance to End Homelessness). That reduction is unique to the veteran homeless population, and veterans represent just 6% of those people experiencing homelessness.
Nevada had the 9th largest estimated rate of homelessness in the United States in 2020, with 23.3 homeless people per 10, 000 and the national average being 17 homeless people per 10,000 (Porch Research, 2021). Of those reported as homeless in the U.S. Housing and Urban Development (HUD) data, 53.1% were living unsheltered and 10.% were considered chronically homeless.
The U.S. Department of Agriculture (USDA) Economic Research Service reports that 10.5 percent (13.8 million) U.S. households were food insecure at some point during 2020. This means they were “uncertain of having, or unable to acquire, enough food to meet the needs of all their members” due to insufficient money or other resources for food as illustrated in the map below (Household Food Security in the United States in 2020).