Ratio of the economically dependent part of the population (children and persons aged 65 or over) to the working-age population (aged 15-64). The result is expressed as the number of persons under 15 and aged 65 or over per 100 persons aged 15-64. Age boundaries may vary. Youth dependency ratios and old-age dependency ratios can be calculated separately.
The distribution of people in a population according to designated demographic traits (e.g. age, sex, country of birth, marital status).
or Optimum population The maximum sustainable size of a resident population in a given ecosystem. This size varies according to the lifestyle and standard of living of the inhabitants.
The maximum sustainable size of a resident population in a given ecosystem.Synonymous : Carrying capacity
The study of the frequency, distribution, and causation of disease in a population, based upon the investigation of factors in the physical and social environment.
The reproductive performance of an individual, a couple, a group, or a population. The term fertility is used instead of birth rate when births are counted in relation to the number of women of reproductive age. The fertility of a cohort can be summarized by completed fertility and mean age at childbearing, whereas the total fertility rate (TFR) measures the fertility ...
The standardized mortality rate (SMR) is the ratio of the number of deaths observed in a population over a given period to the number that would be expected over the same period if the study population had the same age-specific rates as the standard population. If the rate is greater than one, it is interpreted as excess mortality in the study population.
The methods used by couples to regulate their reproduction. The effort of couples to regulate the number and spacing of births through artificial and natural methods of contraception. Family planning connotes conception control to avoid pregnancy and abortion, but it also includes efforts of couples to induce pregnancy.
Methods employed by couples to prevent sexual intercourse from leading to conception and birth. The term birth control is often used synonymously with such terms as contraception, fertility control, and family planning. But birth control includes abortion to prevent a birth, whereas family planning methods explicitly exclude abortion.
Fécondité, familles, conjugalités L'unité s'intéresse à l'évolution du mariage et de la famille en France et dans les pays développés. Elle suit plus particulièrement la diffusion des nouvelles formes de vie en couple et en famille et l'évolution de l'environnement familial dans lequel les enfants grandissent. Elle étudie les tendances de la fécondité - le nombre moyen d'enfants qu'une femme met au monde - et ses facteurs, notamment le désir d'enfant, la fertilité, la contraception et l'avortement. unité de recherche
