Lifetime risk

The likelihood of morbidity or dying of some particular cause during a person’s lifetime.

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from ICRP Publication 131, 2015

The cumulated risk of morbidity or dying of some particular cause up to a given age.

from ICRP Publication 118, 2012

The risk of morbidity or dying of some particular cause over the whole of a person’s life.

from ICRP Publication 115, 2010

Risk cumulated by an individual up to a given age. The estimate used in the present report is the lifetime excess absolute risk associated with a chronic exposure scenario, expressed in number of deaths per 10 000 person-years per WLM (also sometimes denominated as the radiation excess induced death). In the present report, unless otherwise stated, the lifetime duration is 90 years as generally considered in ICRP publications, and the scenario is a constant low-level exposure to 2 WLM per year from 18 to 64 years of age, as proposed in ICRP Publication 65, 1993.