Mortality rate
Mortality Rate
Mortality rate, or death rate (pronunciation: /mɔːrˈtalɪti reɪt/), is a measure of the number of deaths (in general, or due to a specific cause) in a particular population, scaled to the size of that population, per unit of time. Mortality rate is typically expressed in units of deaths per 1,000 individuals per year.
Etymology
The term "mortality" comes from the Latin word mortalitas meaning "death". The term "rate" is derived from the Latin word rata which means "fixed or standard measure".
Definition
Mortality rate is a measure used in epidemiology, the study of disease prevalence in populations. It is calculated by dividing the number of deaths in a time period by the size of the population during that time period. The result is then multiplied by a scaling factor, typically 1,000 or 100,000.
Types of Mortality Rates
There are several specific types of mortality rates including infant mortality rate, child mortality rate, maternal mortality rate, and crude death rate. Each of these rates focuses on a specific population or cause of death and can provide insights into the health and well-being of a population.
Factors Influencing Mortality Rate
Mortality rates can be influenced by a wide range of factors, including healthcare access, socioeconomic status, genetics, and lifestyle factors. Understanding these influences can help public health officials to develop strategies to reduce mortality rates.
Related Terms
External links
- Medical encyclopedia article on Mortality rate
- Wikipedia's article - Mortality rate
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