- noun the number of deaths occurring during a particular period, shown as a percentage of the total population
- (written as Mortality Rate)The crude mortality rate is the total number of deaths per year divided by the population at mid-year times 1000 (i.e. number of deaths per 1000 person-years of observation). The age-specific mortality rate is the mortality rate for a specific age group (e.g. 65 years and older). The sex-specific mortality rate is the mortality rate for males or females. The age- and sex-adjusted rates are weighted according to the proportion of each group in the population. The disease- or cause-specific mortality rate is the annual number of deaths from the particular disease divided by the mid-year population times 1000.
- noun the number of deaths per year, shown per hundred thousand of population