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Research Report

California Health Interview Survey (CHIS) 2025 Making an Impact

The 2025 California Health Interview Survey (CHIS) Making an Impact report highlights our latest research and data and that of people who use it: researchers, health departments, government agencies, journalists, nonprofit organizations, funders, students, and community groups.
cover of CHIS Making an Impact 2025 report with photo collage and interior pages

Policy Brief

Experiencing Acts of Hate and Access to Support: Findings from the 2024 California Health Interview Survey

Research shows that experiencing hate can have wide-ranging negative impacts on individuals and communities. The California Civil Rights Department (CRD) and the California Health Interview Survey (CHIS) included questions on the 2024 CHIS asking victims about the number of hate incidents they had experienced, the types of resources they needed, and whether they were able to access them. This policy brief highlights variations across several population groups and regions.
Report cover with photograph of solemn man and infographic showing dejected man.

Research Report

The Health of California: A Regional Perspective

Using data from the 2021–2022 California Health interview Survey (CHIS), researchers at the UCLA Center for Health Policy Research have identified key differences and similarities in seven selected regions across the state concerning demographics, health status, healthcare experiences, access to food and housing, and civic engagement.
Cover pages of 7 regional health profile reports shows California map and image from each region

Search publications

Older African American man near For Rent sign and infographic with apartment building
Policy Brief

Housing Discrimination in California: Findings from the 2023 and 2024 California Health Interview Survey

Housing discrimination is widely recognized as a significant public health issue, yet its prevalence and distribution across populations remain understudied in California. Using pooled 2023–2024 California Health Interview Survey (CHIS) data for adults 18 and older, this policy brief highlights the prevalence of housing discrimination, groups that are discriminated against, and variations across populations and regions.

CEI fact sheet cover with older woman and infographic

Featured in:

JAMA Network Open

Journal Article

Research Domain Criteria and Deaths by Suicide in the National Violent Death Reporting System

Authors evaluate whether token-based and large language model scoring of research domain criteria (RDoC) can be successfully applied to law enforcement and coroner or medical examiner death narratives in the U.S. National Violent Death Reporting System (NVDRS), and (2) investigate sex and age differences in clinically relevant scores to illuminate underidentified dimensions of mental health dysfunction proximal to suicide.

CEI fact sheet cover with older woman and infographic

Featured in:

Presentation to Senate Budget and Fiscal Review Committee

External Publication

Landscape of Health Insurance for Low-Wage Workers in California

Three panelists spoke to the California Senate Budget and Fiscal Review Committee about employer-based health coverage in California on March 16, 2026. Panelist Miranda Dietz, Health Care Program Director at the UC Berkeley Labor Center, included 2023–2024 CHIS data in her presentation.

CEI fact sheet cover with older woman and infographic

Featured in:

Journal of Asthma

Journal Article

Pediatric Asthma Hospitalizations and Associated Factors in California

In this study, authors compare rates of pediatric asthma hospitalizations across California counties and examine factors correlating to reduced asthma attacks.

CEI fact sheet cover with older woman and infographic

Featured in:

California Budget & Policy Center

External Publication

Short-Term Cuts, Long-Term Costs: Investing in Health Care for All Californians

California had made significant advances toward providing health care for all, but recent federal and state cuts to health care access and eligibility threaten to leave millions without coverage.

CEI fact sheet cover with older woman and infographic

Featured in:

Journal of Adolescent Health

Journal Article

The Longitudinal Association Between Experiences of Racial and Ethnic Discrimination and Mental Health Outcomes Among Latine Adolescents in an Agricultural Community

Authors examined the association between exposures and outcomes in early and middle adolescence, including moderation by generational status, and the association between cumulative exposures during adolescence and outcomes during emerging adulthood. The article references a study that used CHIS data.

CEI fact sheet cover with older woman and infographic

Featured in:

Journal of Community Medicine and Public Health Reports

Journal Article

Shortage of Insurance Coverage for Mental Health Care Among Adolescent Patients

Adolescents remain disproportionately underserved compared to other age groups. This is especially concerning given that most lifetime mental health disorders emerge during adolescence, making timely intervention critical to long-term well-being. By comparing adolescents with Medi-Cal to those with commercial insurance and to their adult counterparts, this study addresses an urgent gap in understanding how systemic insurance structures may contribute to persistent inequities. '

CEI fact sheet cover with older woman and infographic

Featured in:

Center for the Advancement of Women, Mount Saint Mary's University

External Publication

Report on the Status of Women and Girls in California 2026: The Future of Work for Women, Representation Innovation and Access

This year’s Report on the Status of Women and Girls in California™ examines how women’s roles are evolving in a changing economy and highlights the remarkable ways women are already influencing the future of work.

CEI fact sheet cover with older woman and infographic

Featured in:

JAMA Network Open

Journal Article

Cost-Related Delayed or Forgone Care and Emergency Department Visits Among Latino Adults

Authors analyzed the association between cost-related delayed or forgone health care and emergency department (ED) visits among Latino adults in the U.S. in this cross-sectional study of 17,344 Latino adults aged 18 to 64 years from the National Health Interview Survey.

CEI fact sheet cover with older woman and infographic

Featured in:

The Williams Institute at the UCLA School of Law

External Publication

Hate Crimes and Violence Against Transgender People in California and the U.S.

This report presents data from the last 25 years on hate crimes and violence against transgender and nonbinary people, including California-specific data, as well as research on anti-transgender violence and hate crimes at the national level.