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.
A
- Allocation ConcealmentConcealed Allocation, Allocation Masking
- A safeguard in randomised trials ensuring the assignment sequence is unknown to those enrolling participants until after enrolment, preventing selection bias.
I
- Immortal Time BiasGuarantee-Time Bias, Survivor Treatment Selection Bias
- A bias where a period of follow-up is misclassified so a participant cannot, by design, experience the outcome during it, inflating apparent benefit.
S
- Selection BiasSelection Effect, Sampling Bias
- Bias arising when the individuals included in a study differ systematically from the broader population of interest, in ways linked to exposure and outcome.