Statistical Methodsevidence: highv1.0.0
Hazard Ratio
The ratio of hazard rates between two groups, commonly used to express treatment effects in time-to-event analyses.
Definition
The hazard ratio (HR) is the ratio of the hazard rate in the treatment group to the hazard rate in the comparator group at any given time. An HR < 1 indicates the treatment reduces the risk of the event. HRs from clinical trials are used to derive treatment-specific survival curves in economic models, typically by applying the HR to a baseline (comparator) survival function.
Canonical Identity
- Canonical URI
- https://www.darrinbaines.org/id/concept/hazard-ratio
- Authority
- https://www.darrinbaines.org
- Version
- 1.0.0
- Published
- 4/26/2026
- Structured Data
- View JSON-LD →