# age-specific mortality rate

## age-specific mortality rate

Epidemiology A mortality rate limited to a particular age group, in which the numerator is the number of deaths in that age group, and the denominator the number of persons in that age group in the population
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People in the population under consideration can contract the disease at the incidence rate i, and they can die either with the disease at the age-specific mortality rate m1 or without the disease at the mortality rate m0.
A more natural and wholly equivalent way, of expressing the log-linear relationship is to say that the age-specific mortality rate tends to decline by a fixed percentage with the passing of each calendar year.
The revised model has the form: (5a) [Mathematical Expression Omitted] with the restrictions: (5b) [Mathematical Expression Omitted] Here [Mu] (a) denotes an age-specific mortality rate, the rate of mortality of an organization at age a; [n.sub.a] denotes the density of the population at the time that the organization in question attains age a; and [Zeta] (a) summarizes the effects of environmental conditions operating at that time.
The importance of using an appropriate denominator when assessing risk was portrayed in this study in that when the actual number of drivers at risk was used as a denominator in calculating the age-specific mortality rate estimates, the higher risk in younger age groups became apparent.
Let [q.sup.SSA.sub.x] be the age-specific mortality rate from the 1978 birth cohort table from the Social Security Administration, which represents individuals turning age 22 in 2000 (the group of study in this article).
Submaximal repair at a given age has two effects: (1) It increases the reproductive output at that age; and (2) It increases the age-specific mortality rate for the following age, and all subsequent ages.
Implicitly, senescence entails a progressive increase in the age-specific mortality rate (Kirkwood 1987).
In summary, Shanks and Brundage have addressed 3 major mysteries of the 1918 influenza pandemic: high mortality rates/unexplained pathogenesis, unexplained age-specific mortality rate patterns, and evidence for wave-to-wave protection, with a unifying hypothesis.
where ASMR (i) = Age-specific Mortality Rate of ith age group
The increase in mortality rate was limited to persons >64 years of age; during 1998-2004, the age-specific mortality rate of CDAD for persons >64 years of age doubled, from 76 per million population to 146 per million (Figure 3).
Both the number of deaths and age-specific mortality rates for people aged 90 and over increased in 2017, by 4.4% and 2.9% respectively; most notably for females.
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