Mortality rate – Death rate
Mortality means death therefore mortality rate is the death rate. The rate is calculated per 1000 of the population, typically measured per year.
So mortality rate is the number of deaths per 1000 of the population each year.
The memorial graveyards from World War 1 show how high the death rate was for servicemen at the time. (1914-1918)
Example
This map shows global mortality rate for the year 2014.
According to the 2014 CIA world factbook, South Africa has the world’s highest mortality rate followed by Ukraine at 17.49 and 15.72 per 1000 respectively, while Qatar and the United Arab Emirates have the world's lowest mortality rates at 1.53 and 1.99 per 1000 respectively.
NOTE:
There are many factors that affect mortality rate including nutrition, healthcare, disease and age of population. In industrialised nations, approximately 90% of deaths are attributed to age-related causes.