Existing literature on people experiencing homelessness (PEH) draws on non-representative samples from service providers, populations with comorbidities, or areas with disproportionately high sheltered homelessness, leading to bias. Nearly a third of PEH in the US and over half of unsheltered PEH live in California. Researchers from the UCSF Benioff Homelessness and Housing Initiative designed a rigorous state-representative survey of PEH to investigate the antecedents of homelessness, understand health, and inform policy solutions. This is the first large representative study of PEH, beyond a single county, to draw inference on a large population that did not depend on service utilization.

A growing number of people with lived experience of homelessness are finding opportunities in California to influence academic projects. More entities are beginning to create entire boards or councils of people who know what it is like to lose their housing. With regards to including a lived expertise advisory board in UCSF BHHI's California Statewide Study of People Experiencing Homelessness, Kara Young Ponder, PhD, director of community engagement and racial justice at the UCSF Benioff Homelessness and Housing Initiative, said, "The researchers had missed an entire world of economic insecurity, and the survey was much richer because the board members could see things the researchers could not."

This topic brief examines who experiences pregnancy during homelessness, how they lost their housing, their experiences during homelessness, and obstacles to regaining housing. The findings highlight the urgent need for the homelessness system to advance evidence-based strategies to meet the reproductive health needs of people experiencing homelessness.

A new UCSF BHHI study challenges common perceptions about homelessness and drug use in California, revealing that only 37% of surveyed unhoused Californians use drugs regularly, while 25% have never used them at all. Methamphetamine, not opioids, is the most commonly used drug, often as a means to stay alert while living on the streets. The study also highlights the complex relationship between addiction and homelessness—while drug use can increase the risk of losing housing, “Homelessness itself increases drug use because people use it as a coping strategy,” said Margot Kushel, MD. With homelessness on the rise and only 7% of respondents in treatment, experts stress that expanding affordable housing and accessible treatment options is crucial to addressing both crises.

Research from UCSF Benioff Homelessness and Housing Initiative reveals that most people experiencing homelessness in California are not illegal drug users—contrary to widespread public perception. These findings challenge common stereotypes and underscore the urgent need for better treatment options and housing solutions across the state. KCBS Radio news anchor Eric Thomas spoke with Margot Kushel, MD, Professor of Medicine and Chief of UCSF’s Division for Health Equity and Society, to dive deeper into the issue.

Loss of income is considered the number one factor for why Californians experience homelessness, according to new research from UCSF. The new findings highlight the idea that money is not only the main cause of the homelessness, but also a potential solution. "I think it’s really important to note how desperately poor people are, and how much it is their poverty and the high housing costs that are leading to this crisis" said Margot Kushel, MD, director of the UCSF Benioff Homelessness and Housing Initiative and principal investigator of the landmark study.

Intimate partner violence (IPV) is a risk factor for people experiencing homelessness. Few studies have examined the interplay between IPV, homelessness, and housing. Researchers purposefully sampled 104 adults who reported experiencing IPV in the California Statewide Study of People Experiencing Homelessness (CASPEH), a representative, mixed-methods study. They identified six primary themes regarding IPV and homelessness.

A new BHHI report sheds light an oft-misunderstood subpopulation of unhoused people.

BHHI conducted in-depth interviews with 48 people living in their vehicles in Oakland. This report sheds light on the needs and challenges of vehicle residents and provides recommendations on how the city can better serve that population.

Researchers at UCSF Benioff Homelessness and Housing Initiative have released the largest representative survey of homeless people in more than 25 years. Researchers surveyed over 3200 people experiencing homelessness in California, and conducted over 300 in-depth interviews. The California Statewide Study on People Experiencing Homelessness paints a different picture, debunking common myths and providing evidence-based solutions.

Margot Kushel, MD, director of the UCSF Benioff Homelessness and Housing Initiative, delivered the Harvard Joint Center for Housing Studies’ 23rd John T. Dunlop Lecture. Dr. Kushel spoke about the impact that homelessness has on an individual’s quality of life, highlighting the lived experiences of unhoused Californians who participated in the California Statewide Study of People Experiencing Homelessness. After the lecture there was a panel, featuring, Boston Healthcare for the Homeless founder, Harvard Medical School professor James J. O’Connell, and Peggy Bailey, a leader of a housing policy research center. JCHS Managing Director Chris Herbert, the moderated the panel. Dr. Kushel said, "While it is really easy to blame people impacted by homelessness, doing so not only is not fair or right, but it also isn’t going to get us any closer to a solution."

For the California Statewide Study on People Experiencing Homelessness, the largest study on homelessness in California since 1996, the research team included people who were formerly or are currently unhoused residents in California. The CASPEH Lived Expertise Advisory Board members at the UCSF Benioff Homelessness and Housing Initiative provided input on survey questions and planned outreach to people experiencing homelessness. Robynne Rose-Haymer, CASPEH Lived Expertise Advisory Board representative, said, "We did extensive training with our interview team, not just in being trauma-informed, but in being empathetic listeners and approaching everyone with dignity."

A special report, released by UCSF Benioff Homelessness and Housing Initiative, explored the relationship between intimate partner violence (IPV) and homelessness in California. Findings from the report showed how violence and economic insecurity can be intertwined. Margot Kushel, MD, director of the UCSF Benioff Homelessness and Housing Initiative, said, "There are only so many places you can hide when you’re unsheltered."

People experiencing homelessness have significantly lower life expectancies than the general population, and among those aged ≥ 45, tobacco-related illnesses are the leading cause of death.[1] Compared to the general population, tobacco use among people experiencing homelessness is six times higher, and the quit ratio (ratio of former to ever-smokers) is five times lower. [2],[3] We used the largest representative study of people experiencing homelessness since the 1990s to estimate tobacco use prevalence and its association with shelter status, behavioral health, and health services use among adults experiencing homelessness in California to identify opportunities to address unmet tobacco treatment needs.

Conducted by the UCSF Benioff Homelessness and Housing Initiative, the California Statewide Study of People Experiencing Homelessness (CASPEH) is the largest representative study of homelessness in the United States since the mid-1990s. The study provides a comprehensive look at the causes and consequences of homelessness in California and recommends policy changes to shape programs in response.

To better understand the experiences of older adults experiencing homelessness, the UCSF Benioff Homelessness and Housing Initiative examined findings from the California Statewide Study of People Experiencing Homelessness (CASPEH), the largest representative study of homelessness since the mid-1990s. This report reviews who experiences homelessness in late life, how they lost their housing, their experiences during homelessness, and the barriers they face to regaining housing. These findings highlight the urgent need for research-backed solutions and policy interventions to address the unique challenges faced by older adults experiencing homelessness.

Latine Californians represent more than one-third of the state's homeless population. Yet their experiences are too often left out of research, policy, and service design. To better understand these experiences, we examined data from the California Statewide Study of People Experiencing Homelessness. This report, based on the California Statewide Study of People Experiencing Homelessness (CASPEH), examines who experiences homelessness in the Latine community, their experiences while homeless, and offers evidence-based policy and program solutions.

To better understand the experiences of Black Californians experiencing homelessness, the UCSF Benioff Homelessness and Housing Initiative examined the experience of Black Californians within the California Statewide Study of People Experiencing Homelessness (CASPEH), the largest representative study of homelessness since the mid-1990s. This report reviews who experiences homelessness in the Black community, what may have precipitated their homelessness, experiences during their episode of homelessness, and what impacts their return to permanent housing. These findings aim to inform evidence-based solutions for preventing and ending homelessness for Black Californians.

To better understand the experiences of survivors of intimate partner violence currently experiencing homelessness, this report analyzed data related to IPV in the California Statewide Study of People Experiencing Homelessness (CASPEH)—the largest representative study of homelessness since the mid-1990s. The mixed-methods study included data about participants’ experiences of violence across the life course, in the six months prior to homelessness, and during their current episode of homelessness. The report presents these findings to advance research-backed solutions for preventing and responding to homelessness among survivors of IPV. 

The University of California, San Francisco Benioff Homelessness and Housing Initiative (BHHI) today released a special report on Black Californians’ experiences of homelessness. The report explores who in the Black community experiences homelessness, how they lost their housing, their experiences while homeless, and the barriers they face to regaining housing. The goal of the report is to inform evidence-based solutions for preventing and ending homelessness for Black Californians.

SAN FRANCISCO – The University of California, San Francisco Benioff Homelessness and Housing Initiative (BHHI) today released a special report on who experiences homelessness in late life, what precipitated their homelessness, their experiences during homelessness, and what impacted their return to permanent housing. The analysis is based on survey data and in-depth interviews from the California Statewide Study of People Experiencing Homelessness (CASPEH), the largest representative study of homelessness in the United States since the mid-1990s.

SAN FRANCISCO – The University of California, San Francisco Benioff Homelessness and Housing Initiative (BHHI) today released a special report on the relationship between intimate partner violence (IPV) and homelessness in California. The analysis is based on survey data and in-depth interviews from the California Statewide Study of People Experiencing Homelessness (CASPEH), the largest representative study of homelessness in the United States since the mid-1990s.

SAN FRANCISCO – The University of California, San Francisco Benioff Homelessness and Housing Initiative (BHHI) today released the largest representative study of homelessness in the United States since the mid-1990s, providing a comprehensive look at the causes and consequences of homelessness in California and recommending policy changes to shape programs in response.

The University of California, San Francisco Benioff Homelessness and Housing Initiative (BHHI) today released a topic brief that sheds new light on the 78% of all Californians experiencing homelessness who live in unsheltered settings (i.e. outdoors, in a vehicle, in a place not meant for human habitation). It provides policy recommendations for reducing unsheltered homelessness through a combination of prevention, shelter, and permanent housing. 

Black Californians make up only 7% of the states population, but make up more than 25% of the state's population of people who experience homelessness. A recent special report released by the UCSF Benioff Homelessness and Housing Initiative on Black Californians' experiences homelessness highlights the systemic racism. Kara Young Ponder, PhD, director of community engagement and racial justice at the UCSF Benioff Homelessness and Housing Initiative, said, "California is one million units short of affordable and available housing for extremely low-income renters, of which Black Californians are over represented."