Social Determinants of Health: Definition, Examples, Domains

Where you grow up, how much you earn, whether your neighborhood has clean air—these nonmedical factors often matter more for your health than the care you receive at a doctor’s office.

WHO Definition: conditions in which people are born, grow, live, work and age · Healthy People 2030: conditions where people are born, live, learn, work, play, worship, and age · CDC Focus: NCHHSTP Health Equity · NCBI View: mutable societal systems, components, social resources and hazards

The table below consolidates key definitions and framework attributes from authoritative sources.

What is a social determinant of health?

A social determinant of health is any nonmedical factor that influences health outcomes. Where WHO draws the line: conditions in which people are born, grow, live, work, and age—plus access to power, money, and resources. CDC adapted this definition in 2022, framing SDOH as the social and physical environments that shape health beyond clinical care.

WHO definition

WHO states that health inequities stem from the conditions of daily life—where people are born, grow, live, work, and age. The organization emphasizes structural drivers: the distribution of power, money, and resources across societies. WHO recommends improving daily living conditions and tackling the inequitable distribution of these drivers as core policy responses.

Healthy People 2030 view

Healthy People 2030—a U.S. Department of Health and Human Services initiative—defines SDOH slightly differently: environments where people are born, live, learn, work, play, worship, and age. The broader list reflects the reality that factors like recreation, spiritual community, and childhood education matter for health outcomes just as much as income or housing.

NCBI basics

The National Center for Biotechnology Information characterizes SDOH as mutable societal systems, components, and social resources that affect health. “Mutable” is the key word here: unlike genetics or age, these determinants can be changed through policy, community investment, and systemic reform.

What are 5 examples of social determinants of health?

Healthy People 2030 organizes SDOH into five domains, each with concrete examples. These categories capture the breadth of nonmedical factors that public health agencies track and aim to address.

Economic stability

Income, employment status, housing affordability, and access to benefits fall under economic stability. Healthy People 2030 lists safe housing, transportation access, and the ability to afford nutritious food as key examples. Poverty correlates with poorer health outcomes and higher premature death risk.

Education access and quality

Educational attainment, literacy levels, school quality, and early childhood education programs shape long-term health trajectories. Higher education typically correlates with better health literacy, employment options, and access to care.

Healthcare access and quality

Health insurance coverage, proximity to providers, linguistic accessibility, and culturally competent care determine whether people seek and receive appropriate treatment. Geographic barriers—rural areas with few providers—often overlap with economic instability.

Neighborhood environment

The built environment matters: air and water quality, walkability, access to green space, exposure to pollution, and neighborhood safety. Healthy People 2030 cites polluted air and water, plus a lack of physical activity opportunities, as concrete examples.

Social context

Discrimination, social isolation, community cohesion, civic participation, and structural racism all fall under social context. Research suggests over 50% of poor health outcomes are driven by SDOH factors ranging from structural racism to socioeconomic conditions.

What are the 5 domains of social determinants of health?

The five SDOH domains used in the United States come from Healthy People 2030. They represent the dominant framework for categorizing social factors that affect health equity. Here is how the official framework organizes them.

Healthy People framework

• Economic Stability
• Education Access and Quality
• Healthcare Access and Quality
• Neighborhood and Built Environment
• Social and Community Context

The National Academy of Medicine notes that medical care accounts for only 10–20% of modifiable health contributors. The remaining 80–90% fall under SDOH domains—meaning the five areas above represent the largest levers for improving population health.

Variations across sources

The exact count depends on the framework. WHO’s Europe branch suggested 10 SDOH factors in 2003: social gradient, stress, early life, social exclusion, work, unemployment, social support, addiction, food, and transportation. WHO’s global definition does not prescribe a fixed number, instead emphasizing the structural distribution of power and resources.

The catch: different frameworks serve different purposes. Healthy People 2030 offers five practical categories for U.S. public health planning. WHO’s broader approach prioritizes structural analysis over categorization.

What are the five main determinants of health?

When sources ask about “five main determinants” versus “five domains,” the terminology overlaps significantly. The distinction lies in scope: “determinants” often includes biological and behavioral factors alongside social ones.

Broader determinants

A broader view of health determinants typically includes:

• Social determinants – economic stability, education, community (the SDOH focus)
• Economic determinants – income inequality, employment, wealth
• Physical determinants – built environment, natural environment, housing
• Behavioral determinants – individual choices, health behaviors
• Genetic and biological determinants – age, sex, inherited conditions

NCBI understanding

The NCBI frames SDOH specifically as mutable societal systems—factors that can be modified through policy intervention. This distinguishes them from immutable factors like genetics. The practical implication: SDOH are where public health investment delivers the highest return.

What are the 4 determinants of health?

Some frameworks condense health determinants into four categories. The Whitehead-Dahlgren model, dating to 1991, is a foundational example. It illustrates health determinants across four layers.

Core categories

• General socioeconomic, cultural, and environmental conditions – societal and community level
• Living and working conditions – employment, housing, food access
• Social and community networks – relationships, social support
• Individual behavior and biology – genetics, lifestyle choices

Overlaps with 5-domain models

The Whitehead-Dahlgren model maps broadly onto the Healthy People 2030 framework. Its outer layer (general conditions) corresponds to structural SDOH; its inner layers map to the five domains. CDC adapted this model for its own SDOH framework, which includes six functional pillars: community engagement, infrastructure and capacity, policy and law, partnerships, data and surveillance, and evaluation.

Key frameworks and indices

Beyond the five domains, several tools measure and track SDOH at the population level. Two indices stand out for their data rigor and policy relevance.

CDC Social Vulnerability Index

The CDC/ATSDR Social Vulnerability Index (SVI) ranks U.S. census tracts on 15 variables across four themes: poverty, vehicle access, crowded housing, and socioeconomic status. The index is updated every two years and helps public health officials identify communities most at risk during emergencies or disease outbreaks.

Healthiest Communities Index

The Healthiest Communities Index, tracked through the NCBI, weights SDOH domains differently: Population Health (14.2%), Equity (12.23%), Economy (11.1%). The weighting reflects the relative impact each domain has on community-level outcomes.

SDOH have been shown to have a greater influence on health than either genetic factors or access to healthcare services.

— CDC (U.S. Centers for Disease Control and Prevention, public health agency)

Medical care is estimated to account for only 10-20 percent of the modifiable contributors to healthy outcomes for a population.

— National Academy of Medicine (authoritative body, NAM Perspectives)

At all levels of income, health and illness follow a social gradient: the lower the socioeconomic position, the worse the health.

— WHO (World Health Organization, global health governing body)

Policy implications

The recognition that SDOH drive 80–90% of health outcomes has shifted policy focus beyond clinical settings. Several federal actions illustrate this trend.

CDC SDOH funding

In fiscal year 2021, CDC funded the SDOH Accelerator Plan Initiative, providing grants to state, tribal, local, and territorial organizations. The agency issued its first SDOH-specific Notice of Funding Opportunity (NOFO) in 2022, supporting 20 state and local grantees focused on housing, transportation, and food security.

CMS screening proposals

The Centers for Medicare and Medicaid Services (CMS) proposed rules requiring hospitals to screen for social needs: housing stability, transportation access, and food security. This marks a shift from voluntary screening to mandated assessment, reflecting evidence that clinical settings cannot improve health outcomes without addressing underlying social conditions.

Affordable Care Act integration

The 2010 Affordable Care Act integrated SDOH into U.S. healthcare policy through Community Transformation Grants. While the grants have since evolved, the 2010 legislation marked an early federal effort to embed social factors into healthcare financing and delivery.

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Professionals addressing domains like economic stability and neighborhood environment often pursue health and social care courses, building practical skills to drive policy impacts.

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