Data on death; often expressed as mortality (death) rate, which is an estimate of the proportion of a population that dies during a specified period. Mortality (death) statistics usually show numbers of death ad/or rates by age, sex, cause, and sometimes other variables. Different types of mortality (death) rates are available, for example infant mortality rate (the number of children dying under a year of age divided by the number of live births that year).
Ref.: Porta M (Ed.). A Dictionary of Epidemiology. IEA, 2008. Oxford University Press.