Health System Model
An illustrative ONEMODEL health-system digital twin connecting population health, disease pathways, households, clinicians, hospitals, primary care, long-term care, employers, public spending, and well-being.
Move from a forecast to a system experiment.
Each scenario changes conditions inside the same governed model, so the consequences can propagate through behaviour, capacity, prices, institutions, and time.
What if primary-care capacity expands while the population ages?
Follow attachment, emergency use, hospital demand, workforce pressure, health outcomes, public costs, and geographic differences over time.
What is the full burden of a chronic disease?
Compare scenarios with and without disease to connect care use, private costs, employment, disability, participation, and well-being.
Where does a workforce shortage create the greatest downstream pressure?
Trace how provider constraints affect access, queues, outcomes, family burden, labour-force participation, and future demand.
What the digital twin needs to represent.
The exact model can vary by project, but the value comes from keeping the important actors, state, constraints, and causal pathways inside one coherent simulation.
Population and disease state
Health-system demand begins with people, not utilization averages.
- Disease pathways Incidence, prevalence, progression, disability, treatment, and recovery where evidence supports it.
- Life course Age, household, employment, income, geography, and changing risk.
- Well-being Pain, independence, participation, life satisfaction, and other quality-of-life dimensions where measured.
Care delivery
Supply and access need to interact with health state.
- Providers Primary, specialist, acute, long-term, community, and public-health services.
- Capacity Workforce, beds, appointments, geography, and waiting.
- Treatment Eligibility, uptake, adherence, effectiveness, and resource use.
Economic connections
Health changes economic participation and household circumstances.
- Employment Absence, productivity, disability, workforce exit, and employer burden.
- Household costs Out-of-pocket spending, caregiving, mobility, and income effects.
- Government Health expenditure, programs, transfers, and fiscal consequences.
Outputs
A connected model can report both system pressure and human consequence.
- Health system Utilization, wait times, capacity, workforce, and public spending.
- Economic Employment, productivity, private costs, and household finances.
- Social value Disability, participation, independence, and well-being impacts.
Health outcomes are also life outcomes.
CANCEA’s existing ONEMODEL work demonstrates why health-system analysis can extend beyond medical spending into work, household finances, disability, participation, and well-being.
Use the complexity only when it changes the answer.
ONEMODEL adds value when
- Disease, access, capacity, employment, and household outcomes interact.
- The distribution of burden across people and places matters.
- A policy changes both health-system use and wider social/economic outcomes.
- Long-term feedback and prevention effects are important.
A simpler model is enough when
- Only utilization accounting is required.
- Capacity and behaviour can safely be treated as fixed.
- A narrow clinical model is sufficient and wider socioeconomic propagation is out of scope.