The number of persons who have died in a given period of time and within a specified population size.
The number of deaths per year per thousand of population.
The number of deaths within a group of people in 1 year divided by the average or midyear population of that group. If total population is used, the result is called the crude death rate. Death rate can also be calculated for the population within certain age groups; the result is the age-specific death rate. Death rate may be measured in people with a specific disease or condition, such as a gunshot wound (homicide rate) or heart disease.