birth-rate A measure designed to provide information on the comparative fertility of different populations, most commonly used in demographic analysis. A number of different calculations of varying sophistication may be used. The most well-known—the ‘crude birth-rate’—is simply the number of live births in a year per 1,000 population (using mid-year estimates). This measure takes no account of the age-structure of populations, which affects the numbers of women who are capable of giving birth in any year (the ‘population at risk’), and does not therefore yield particularly accurate comparisons. Multiplying the crude birth-rate by Area Comparability Factors produces rates adjusted for age and sex differences, allowing comparisons to be made between geographical areas, or across social groups within a society. The ‘general fertility rate’ is the birth-rate per thousand women of child-bearing age, calculated as the number of live births divided by the female population aged 15–44 years, times 1,000. These more sophisticated birth-rates take account of factors such as age-structure, but the more sophisticated the measure, the more data about the population are required for its calculation.
More From encyclopedia.com
Mortality , mortality, mortality rate The death-rate, usually standardized by age and sex, to facilitate comparisons between areas and social groups. It provides… Demography , Demography is the scientific study of the size, composition, and distribution of human populations, and their changes resulting from fertility, morta… Multiple Births , Nearly one in every hundred deliveries is a twin birth. Triplet, quadruplet, and higher order deliveries occur far less frequently–only 1 in 10,000 d… Infant Mortality , Definition The infant mortality rate is the number of deaths of infants under one year of age per 1,000 live births in a given population. In 2002, t… Population Dynamics , Population dynamics refer to the way in which the size and age structure of populations change over time and the characterization of that change in m… Population Studies , Population studies is broadly defined as the scientific study of human populations. Major areas studied include broad population dynamics; fertility…
About this article
Updated About encyclopedia.com content Print Article
You Might Also Like