Dictionary
The Dictionary provides concise definitions of health economics terms, arranged alphabetically for quick reference. Use it to understand unfamiliar terminology or confirm the meaning of a specific term.
M
- Model AssumptionModelling Assumption, Structural Premise
- A simplifying premise built into a model's structure or parameter values, adopted because the true underlying reality is unknown or too complex.
P
- Proportional Hazards AssumptionPH Assumption, Constant Hazard Ratio Assumption
- The Cox model assumption that the hazard ratio between two groups stays constant over follow-up, even as the absolute hazard rate changes.
S
- Sandwich EstimatorHuber-White Estimator, Robust Variance Estimator
- A method calculating an estimator's variance that remains valid even when standard model assumptions are violated, forming the basis of robust standard errors.