Hale Calculation
The process of computing health-adjusted life expectancy, combining mortality data with health state prevalence and severity weights into one summary measure.
Encyclopaedia
Explore comprehensive, evidence-informed explanations of key health economics concepts, including their development, application and relationships to other concepts. Published entries are validated through human expert review.
Concepts, entries and ontology terms
A concept page is a published entry on the wiki. Some concepts also have a full encyclopaedia article. The Health Economics Ontology (HEO) holds every concept, including dictionary terms without an article, so it is larger than the list of published pages. The knowledge graph shows how concepts relate to each other.
Half-Cycle Correction
Half-cycle correction is a Markov model adjustment that counts costs and QALYs as if transitions occur, on average, halfway through each cycle.
Half-Life
Half-life is the time taken for a quantity, such as a drug's plasma concentration, to fall by half, which sets dosing intervals and time to steady state.
HAQ-DI
HAQ-DI is a 20-question patient-reported physical function index scored 0 to 3, used in rheumatology trials and mapped to EQ-5D in arthritis models.
Harm Rate
A harm rate is the number of injuries caused by healthcare per 1,000 patient days or per 100 admissions, used by hospitals to track patient safety.
Harrell C-Index
Harrell's C-index measures how well a survival model ranks patients, the share of usable pairs where the patient with the earlier event had higher risk.
Hazard Rate
The hazard rate is the instantaneous event rate among people still event free at a given time in survival models. Not a probability, it can exceed 1.
Hazard Ratio
A hazard ratio (HR) is the ratio of the event rates (hazards) in two groups, the usual measure of a treatment effect on survival in trials and HTA models.
Health Capital
Health capital is a person's health viewed in health economics as a durable stock that yields healthy time, depreciates with age and grows with investment.
Health Economic Model
A health economic model, or decision model, is a mathematical framework combining evidence to estimate the costs and health outcomes of healthcare options.
Health Economics
Health economics studies how scarce resources are best used to provide healthcare and improve health, and how the costs and benefits are shared in society.
Health Equity
Health equity (equity in health) means everyone has a fair chance to reach their full health potential, free of avoidable and unfair differences in health.
Health Inequality
Health inequality is a measurable difference in health between individuals or groups, described without judging whether the difference is unfair.
Health Inequity
Health inequity is a difference in health judged avoidable, unfair and unjust, often arising from social or economic disadvantage rather than biology.
Health Insurance
Health insurance is a prepaid arrangement that pools contributions to pay for members' covered care, protecting them from large, uncertain medical costs.
Health Needs Assessment
Health needs assessment is a systematic method for finding unmet capacity to benefit from care in a population, to set priorities and allocate resources.
Health Policy
Health policy is the decisions, rules and spending choices by which governments and health bodies set priorities and use scarce resources for health.
Health Production Function
A health production function shows how medical care, other market goods and own time produce health, with education raising efficiency (Grossman model).
Health Spending as GDP Share
Health spending as GDP share is current health expenditure divided by gross domestic product, used to compare health spending across countries and years.
Health State Utility Value
A health state utility value (HSUV) is the preference-based weight given to a health state, with full health at 1 and dead at 0, used to calculate QALYs.