birth rate


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Related to birth rate: Crude birth rate

birth rate:

see vital statisticsvital statistics,
primarily records of the number of births and deaths in a population. Other factors, such as number of marriages and causes of death, by age groups, are regularly included.
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birth rate

the number of live births per 1000 people of all ages in one year. In post-World War II UK the birth rate rose until the mid-1960s and has since declined. Since 1951 the highest birth rate was in 1964 with 18.8 live births per 1000 people, and the lowest was in 1977 with 11.7 live births per 1000 people.

The overall birth rate is sometimes referred to as the crude birth rate. Various other ‘age specific measures of the rate can be calculated to provide more reliable projections of POPULATION trends. There is some suggestion that birth rate changes may be related to economic cycles, but this is not a simple relationship. Variables affecting birth rate, including length of marriage, the age structure of the population and contraceptive methods used, interact in a complex manner with economic factors. See also DEATH RATE, FERTILITY, DEMOGRAPHY, FECUNDITY. DEMOGRAPHIC TRANSITION, POPULATION.

birth rate

[′bərth ‚rāt]
(biology)
The ratio between the number of live births and a specified number of people in a population over a given period of time.
References in periodicals archive ?
As our new list of city preterm birth rates highlights, many areas of the country, and tens of thousands of families, are not sharing in this success.
P2) For the remaining (z - n) women, the lifetime birth rate is (1/2)[(n/z)+1]P,
While 2010 data shows a decrease for Southbridge, it is unknown what the teen birth rate and teen pregnancy rate has been in the past two years without those services, and could possibly have increased.
However, midwife numbers have been playing catch-up for many years and these figures need to be viewed against the massive birth rate rise of the previous decade.
The birth rate was 2% in 1981, cut half to 1% in 2003, and dropped to 0.
In Al Wasl Hospital alone, the average birth rate is 7,000 per year.
The increase in Cyprus' birth rate is now the third highest in Europe rising from 10.
Isn't that typical of the developed world generally, where birth rates leveled off when women entered the work force?
One reason for the low birth rate is the 12-hour working day.
NOT for the first time in recent months I read of a soaring birth rate in the Cardiff and Vale area - "Baby Boom Delivers Plan For Extra Staff" (Echo, January 8) - with the official rate up from 4,900 in 2004 to 5,800 in 2007.
Quebec City -- For well over a decade, Quebec Province has enjoyed the distinction of having the lowest birth rate in North America.
SACRAMENTO -- While more people left Los Angeles than moved to it this year, the birth rate pushed the county's population up by 0.