Hispanic Community Health Study/Study of Latinos

Hispanic Community Health Study/Study of Latinos
Name	Hispanic Community Health Study/Study of Latinos
Acronym	HCHS/SOL
Type	Cohort study
Established	2006
Locations	Bronx, Chicago, Miami, San Diego
Participants	~16,415
Principal investigator	National Heart, Lung, and Blood Institute
Fields	Epidemiology, Cardiology, Public health

Hispanic Community Health Study/Study of Latinos The Hispanic Community Health Study/Study of Latinos is a multicenter, longitudinal cohort study of Hispanic and Latino adults in the United States that characterizes cardiovascular, pulmonary, metabolic, and mental health over time. Funded and coordinated by the National Heart, Lung, and Blood Institute with collaborations involving academic institutions and community organizations in Bronx, Chicago, Miami, and San Diego, the study integrates clinical, behavioral, and sociocultural data to inform disease prevention and healthcare policy.

Background and objectives

The study was launched to address gaps in knowledge about disease prevalence and risk factors among diverse Hispanic and Latino origin groups, aiming to quantify conditions such as cardiovascular disease, diabetes, and pulmonary disorders while evaluating social determinants linked to health disparities; collaborators included the Centers for Disease Control and Prevention, the National Institutes of Health, and academic centers such as Johns Hopkins University, Columbia University, University of California, San Diego, and University of Miami. Objectives encompassed estimation of prevalence and incidence of cardiometabolic conditions, identification of risk and protective factors across Mexican, Puerto Rican, Cuban, Dominican, Central American, and South American heritage groups, and generation of data to inform clinical guidelines from bodies like the American Heart Association and American Diabetes Association.

Study design and methodology

HCHS/SOL employed a prospective cohort design with baseline visits between 2008–2011 and follow-up examinations, combining standardized physical examinations, interviewer-administered questionnaires, echocardiography, spirometry, and laboratory assays; coordinating centers and data cores included institutions such as Wake Forest University, Albert Einstein College of Medicine, Northwestern University, and the University of Minnesota. The sampling strategy used probability sampling within defined census tract areas to achieve representativeness of Hispanic/Latino subgroups, with quality assurance and biostatistical oversight from groups at Harvard University, University of California, Los Angeles, and the Columbia University Medical Center.

Participant recruitment and demographics

Approximately 16,415 participants aged 18–74 were enrolled, reflecting diverse heritage groups with targeted recruitment in neighborhoods associated with Cuban, Puerto Rican, Mexican, Dominican, Central American, and South American populations; recruitment relied on community engagement with partners such as local health departments, faith-based organizations, and community clinics including Mount Sinai Hospital, Montefiore Medical Center, Jackson Memorial Hospital, and San Diego County Health and Human Services Agency. Demographic characterization incorporated measures of acculturation, socioeconomic status, and immigration history with analytic contributions from investigators affiliated with University of North Carolina at Chapel Hill, Duke University, University of Pennsylvania, and University of Texas Health Science Center at Houston.

Key findings and health outcomes

HCHS/SOL documented heterogeneity in prevalence and incidence of cardiometabolic and pulmonary conditions across heritage groups, reporting variable rates of type 2 diabetes, hypertension, dyslipidemia, and chronic obstructive pulmonary disease; these results influenced disease burden estimates used by the World Health Organization and informed clinical risk algorithms endorsed by the American College of Cardiology and American Thoracic Society. Publications from the study have described distinct cardiovascular risk profiles linked to lifestyle factors and psychosocial stressors, with contributions from investigators at Brigham and Women's Hospital, Mayo Clinic, Cleveland Clinic, and Massachusetts General Hospital. Mental health findings highlighted differential prevalence of depressive and anxiety disorders, shaping community mental health strategies alongside partners such as Substance Abuse and Mental Health Services Administration and regional behavioral health systems.

Biomarkers, genetic and environmental assessments

The study collected biospecimens for measurement of lipids, glycemic markers, inflammatory markers such as C-reactive protein, and extensive genetic data including genome-wide association studies, integrative analyses conducted with genomics groups at Broad Institute, University of Washington, Salk Institute for Biological Studies, and University of California, Berkeley. Environmental and occupational exposures were assessed with geocoded residential histories and linkage to air quality metrics from the Environmental Protection Agency, and investigators examined gene–environment interactions drawing expertise from National Institute of Environmental Health Sciences, Fred Hutchinson Cancer Research Center, and Rutgers University.

Impact, public health implications, and policy contributions

Findings from HCHS/SOL have informed targeted prevention and screening recommendations for Hispanic/Latino populations, contributed data used by the U.S. Preventive Services Task Force, influenced guideline updates by the American Diabetes Association and American Heart Association, and supported community interventions implemented by municipal health departments such as the New York City Department of Health and Mental Hygiene and Miami-Dade County Health Department. The study’s infrastructure and data sharing have enabled secondary research collaborations with institutions like National Cancer Institute, Agency for Healthcare Research and Quality, University of California, San Francisco, and Yale University, advancing understanding of health disparities and supporting policy initiatives at state and federal levels.

Category:Cohort studies