Related Content

In this work

Show Summary Details

Page of

PRINTED FROM OXFORD REFERENCE (www.oxfordreference.com). (c) Copyright Oxford University Press, 2021. All Rights Reserved. Under the terms of the licence agreement, an individual user may print out a PDF of a single entry from a reference work in OR for personal use (for details see Privacy Policy and Legal Notice).

date: 17 January 2021

Hazard Rate

Source:
A Dictionary of Epidemiology
Author(s):

Miquel Porta

Hazard Rate (Syn: force of morbidity, instantaneous incidence rate) 

A theoretical measure of the probability of occurrence of an event per unit time at risk; e.g., death or new disease, at a point in time, t, defined mathematically as the limit, as ∆ t approaches zero, of the probability that an individual well at time t will experience the event by t + ∆ t, divided by ∆ t. It equals the Probability density of the event divided by the Survival Function for the event.1, 3, 7, 8, 11, 24