- Shows the number of deaths in a given year resulting from particular reason to the total population multiplied by mid-year in 1000 or 100000, and often loves each age group separately, and then be age causal rates.
- A = number generated by reason of deaths in a given year
ــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــ × 100000
The total number of the population in the middle of the year
- It shows the public health and diseases prevailing level, and these rates are an important basis for comparing countries according to their level of health.
- It is noted that the reason for the total mortality in the community is equal to its rate of mortality.
- Data is not without errors notably: lack of precision in the diagnosis of the cause of death, so the data are affected by varying medical skills and geographical distribution of medical services in the country or between countries.