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glossary * M *
| Demographical and statistical terms | Symbols |
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marriage is the act, ceremony or process by which the relationship of husband and wife is constituted. The legality of the union may be established by civil, religious, or other means as recognized by the laws of each country. |
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maternal mortality according to ninth revision of the International Classifications of Diseases, "maternal death" is defined as the death af a woman while pregnant or within 42 days of termination of pregnancy, from any cause related to or aggravated by the pregnancy or its management but not from accidental or incidental causes. |
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maternal mortality rates are the annual number of maternal deaths divided by the live births in the same year. |
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maternity is used to denote a confinement resulting in the birth of one or more children. |
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maximum resistance value at age xm represents the maximum value which the function (or distribution) of resistance reached at age xm. |
r(xm) or R(xm) |
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mean age of a population is the average age of all its members. |
MAP |
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median age of a population is the age which divides the population into two numerically equal groups |
MDP |
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mean age of childbearing represents the mean age of the mothers at childbirth. |
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median length of life is the age at which half the original cohort of births have died |
P o |
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mid-year population estimate refer to the de facto population on 1 july, or to the mean of two year-end official estimates. |
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migrant an individual whose place of residence differs at the beginning and the end of a certain interval of time. |
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migration the movement of people across a specified boundary for the purpose of establishing a new permanent residence. Divided into international migration (migration between countries) and internal migration (migration with a country). |
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model life table is a life table which is based only upon the generalization of empirical relationships derived from a group of observed life tables. |
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monozigotic twins occur when one ovum splits after fertilization; the resulting children must always be the same sex. |
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mortality rate at age x (see Central death rate at age x) |
n m x ; n M x |