Mean age at birth: Difference between revisions
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===For all births=== | ===For all births=== | ||
The '''mean age of childbearing''' (''MAC'') in a given [[population]] over a given time interval is the [[arithmetic mean]] of the ages of mothers giving [[live birth]]s at the time of the live birth, for all live births that occur within that time interval. | The '''mean age of childbearing''' (''MAC'') or '''mean age at birth''' ('''MAB''') in a given [[population]] over a given time interval is the [[arithmetic mean]] of the ages of mothers giving [[live birth]]s at the time of the live birth, for all live births that occur within that time interval. | ||
===For births at a given birth order=== | ===For births at a given birth order=== | ||
Suppose <math>i</math> is a positive integer. The mean age of <math>i^{th}</math> childbearing, denoted <math>MAC_i</math>, for a given population in a given time interval is the [[arithmetic mean]] of the ages of mothers giving [[live birth]]s at the time of the live birth, for all live births that occur within the time interval at [[defining ingredient::birth order]] <math>i</math>. | Suppose <math>i</math> is a positive integer. The mean age of <math>i^{th}</math> childbearing, denoted <math>MAC_i</math>, for a given population in a given time interval is the [[arithmetic mean]] of the ages of mothers giving [[live birth]]s at the time of the live birth, for all live births that occur within the time interval at [[defining ingredient::birth order]] <math>i</math>. | ||
Revision as of 19:15, 3 March 2014
Definition
For all births
The mean age of childbearing (MAC) or mean age at birth (MAB) in a given population over a given time interval is the arithmetic mean of the ages of mothers giving live births at the time of the live birth, for all live births that occur within that time interval.
For births at a given birth order
Suppose is a positive integer. The mean age of childbearing, denoted , for a given population in a given time interval is the arithmetic mean of the ages of mothers giving live births at the time of the live birth, for all live births that occur within the time interval at birth order .
