hazard ratio

English

Noun

hazard ratio (plural hazard ratios)

1. (statistics, medicine) A measure of the chance of an event in one group compared to that of another at a particular time or over a subset of a study's time; the ratio between two groups' hazard rates.

Usage notes

A hazard ratio significantly different from 1 means that the event being studied is much more likely in one group than in the other. A hazard ratio close to 1 means that the event's likelihood is not significantly different between the two groups compared.

Related terms

• relative risk
• relative risk ratio
• relative risk reduction, RRR
• risk ratio
• odds ratio
• hazard rate

Translations

instantaneous risk of an intervention over a study time period

• German: Ausfallrate f