Birth rate

Birth rate

The birth rate (also known as natality) is a demographic measure of the number of live births per 1,000 people per year. It is often used in population studies and public health to understand population growth and decline.

Pronunciation

• /ˈbɜːrθ reɪt/

Etymology

The term "birth rate" is derived from the English words "birth" (from the Old English gebyrd meaning "birth, descent, race, nature") and "rate" (from the Latin rata meaning "fixed, settled").

Related terms

• Fertility rate: The number of live births per 1,000 women of childbearing age (usually defined as ages 15-49) in a population in a given year.
• Mortality rate: The number of deaths in a population in a specific period.
• Population growth rate: The rate at which the number of individuals in a population increases in a given time period as a fraction of the initial population.
• Replacement level fertility: The total fertility rate at which a population exactly replaces itself from one generation to the next, without migration.

See also

• Demography
• Population dynamics
• Total fertility rate
• Crude birth rate

External links

• Medical encyclopedia article on Birth rate
• Wikipedia's article - Birth rate

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