Determinants of Health and Their Impact on the Community
Determinants of health are the personal, social, economic, cultural, environmental and health-system conditions that shape health across the life course. They influence exposure to risks, vulnerability to illness, access to care and the consequences of disease.
Learning objectives
- Define determinants of health and health inequity.
- Classify biological, behavioural, social, economic, environmental and health-system determinants.
- Explain how determinants interact to affect individuals and communities.
- Identify pathways that produce unequal health outcomes.
- Propose multisectoral interventions at individual, community and policy levels.
A social-ecological view
Health is produced through interacting layers rather than a single cause. Individual characteristics operate within families and social networks; these are shaped by living and working conditions, which in turn reflect wider economic, political, cultural and environmental forces.
| Level | Examples | Possible action |
|---|---|---|
| Individual | Age, genetics, knowledge, behaviour | Clinical care, counselling and skills |
| Interpersonal | Family support, peer influence, caregiving | Family education and support groups |
| Community | Schools, workplaces, transport, safety and norms | Community mobilisation and safer services |
| Structural | Income distribution, laws, policy, discrimination and climate | Healthy public policy and social protection |
Major determinants of health
1. Biological factors
- Age and sex
- Genetic inheritance
- Immune status
- Pregnancy and developmental stage
- Existing disease or disability
Some are non-modifiable, but their effects may be reduced through prevention and appropriate care.
2. Behaviour and lifestyle
- Diet and physical activity
- Tobacco, alcohol and substance use
- Sexual practices
- Hygiene and sanitation behaviour
- Care-seeking and treatment adherence
Choices are influenced by affordability, marketing, stress, education and the available environment.
3. Income and social protection
- Household income and assets
- Employment security
- Food security
- Ability to afford transport and care
- Protection during illness or unemployment
Poverty increases harmful exposures while limiting resources for prevention and recovery.
4. Education and health literacy
- School attendance and completion
- Ability to understand health information
- Problem-solving and employment opportunities
- Women's empowerment and child health
Education affects lifetime income, autonomy and use of services.
5. Physical environment
- Water, sanitation and waste management
- Housing quality and crowding
- Air pollution and occupational exposure
- Roads, transport and injury hazards
- Climate, vectors and disasters
Environmental risks often cluster in poorer communities.
6. Social and cultural environment
- Family and community support
- Gender roles and power
- Beliefs, norms and stigma
- Violence, discrimination and social exclusion
- Community trust and participation
Culture can protect health or create barriers depending on context.
7. Health services
- Availability and geographic access
- Affordability and financial protection
- Quality, safety and respectful care
- Medicines, diagnostics and workforce
- Continuity, referral and emergency readiness
Access alone is insufficient if services are low quality or unacceptable.
8. Governance and policy
- Public financing and accountability
- Food, tobacco, alcohol and road-safety policies
- Education, housing and labour regulation
- Emergency preparedness
- Equitable distribution of resources
Policies outside the health sector can strongly improve or harm health.
Health inequality and health inequity
- Health inequality is any measurable difference in health between people or groups.
- Health inequity is a difference that is systematic, avoidable and unfair.
- Equity means allocating opportunities and resources according to need so that everyone has a fair chance to achieve health.
- Equality means giving the same resources to everyone, which may not overcome different levels of need or disadvantage.
Pathways from determinants to disease
Example: childhood diarrhoeal disease
Low household income may limit safe housing and fuel. An unsafe water source and inadequate sanitation increase faecal contamination. Limited caregiver education may delay recognition of danger signs. Distance, transport cost and medicine shortages delay treatment. The final outcome is not caused by a single behaviour; it reflects interacting structural, environmental and health-system determinants.
Another example: hypertension
Genetic susceptibility interacts with diet, stress, physical activity and age. Food prices and marketing influence dietary choices; unsafe streets may reduce exercise; work conditions affect stress and clinic attendance; primary-care capacity determines detection and long-term control.
Community impact
| Impact | How determinants contribute |
|---|---|
| Higher morbidity and mortality | Greater exposure and delayed prevention, diagnosis or treatment |
| Household poverty | Medical costs, transport expenses and loss of income |
| Reduced education | School absence, disability, caregiving demands and poor nutrition |
| Lower productivity | Illness, premature death and unsafe working conditions |
| Health-service pressure | Preventable disease increases outpatient, inpatient and emergency workload |
| Intergenerational disadvantage | Poor maternal health, childhood malnutrition and limited education affect future adulthood |
| Social instability | Inequity can reduce trust, participation and community cohesion |
Assessing determinants in a community
- Define the population and engage stakeholders: include community members, leaders and marginalised groups.
- Describe health outcomes: analyse morbidity, mortality, disability and service data.
- Map determinants: assess water, housing, schools, food, employment, transport and services.
- Disaggregate data: compare outcomes by sex, age, income, location, disability and other relevant factors.
- Identify assets: record community organisations, knowledge, leadership and existing services.
- Prioritise: consider severity, scale, inequity, feasibility and community preference.
- Act and evaluate: select indicators, assign responsibility and monitor both average improvement and equity.
Interventions
Individual and clinical
- Risk assessment and treatment
- Health education and counselling
- Referral to social and rehabilitation services
- Respectful, culturally responsive care
Community
- Safe-water and sanitation programmes
- School and workplace health
- Community health-worker outreach
- Support groups and violence prevention
Health system
- Strengthen primary care and referral
- Improve medicine and diagnostic availability
- Reduce financial and geographic barriers
- Use data to allocate resources by need
Policy and multisectoral
- Social protection and quality education
- Safe housing, roads and clean energy
- Food, tobacco and alcohol regulation
- Climate adaptation and environmental protection
Role of the clinical officer
- Ask about occupation, housing, food security, transport, family support and ability to pay.
- Avoid blaming patients for choices constrained by their environment.
- Document and refer social needs using available pathways.
- Use facility data to identify underserved groups and missed follow-up.
- Participate in community diagnosis, health education and outreach.
- Advocate for safe, equitable and evidence-based services.
- Collaborate with public health, education, agriculture, water, labour and local government teams.
Measuring progress
- Health outcomes: incidence, prevalence, mortality, disability and quality of life.
- Determinants: income, schooling, housing, water, sanitation and food security.
- Services: coverage, waiting time, treatment continuity and quality.
- Equity: absolute and relative gaps between advantaged and disadvantaged groups.
- Participation: community representation and satisfaction.
Exam-focused summary
- Health determinants operate at individual, family, community, health-system and structural levels.
- Social and environmental conditions shape behaviour; avoid reducing health problems to personal choice alone.
- Health inequities are systematic, avoidable and unfair differences.
- Community impact includes illness, poverty, lost education, low productivity and pressure on services.
- Effective action combines clinical care with public-health and multisectoral interventions.
Review questions
- Define determinants of health and health inequity.
- Describe eight categories of health determinants.
- Explain how poverty can lead to poor health and how illness can deepen poverty.
- Using one disease, trace the pathway from structural determinants to outcome.
- Outline the steps of a community determinant assessment.
- State six actions a clinical officer can take to address determinants of health.
References and further reading
Educational use only. Apply current Uganda Ministry of Health guidance, district priorities and local referral pathways.
