Mean age
The mathematical average age of all the members of a population.For instance, mean age at childbearing in 2006, mean retirement age etc.
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Consensual union
Long-term cohabitation of an unmarried couple.
Probability
Probability of an event occurring between two ages (or durations) among people who have not previously experienced it.
Total fertility rate
The total fertility rate (TFR) can be interpreted as the number of children a woman would have during her lifetime if she were to experience the fertility rates of the period at each age. Though the TFR and completed fertility are often at similar levels, the two indicators may diverge when fertility timing is modified. Postponement of births brings down ...
Citizenship
Citizenship is the status of a legal member of a sovereign state.
Sterility
Inability of a man or woman to produce a live birth. Sterility may be the result of a physiological incapacity (infecundity) or voluntary sterilization.
Lethality
Deadliness of a disease. Case Fatality Rate The proportion of persons contracting a disease who die from it over a specified period. This rate is a measure of the virulence of the disease.
Nuptiality
The frequency, characteristics, and dissolution of marriages in a population. Crude marriage rate : The ratio of the number of marriages during the year to the average population in that year. The value is expressed per 1000 inhabitants. A variety of marriage rates are used to measure nuptiality: first marriage rate, remarriage rate etc.
Doubling time
The number of years required for a specified population to double in size at the current rate of population growth.
Epidemic
A mass outbreak of a disease in a particular geographic area which spreads and then disappears relatively quickly.