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2. Total fertility rate - Wikipedia

   en.wikipedia.org/wiki/Total_fertility_rate

   The total fertility rate (TFR) of a population is the average number of children that are born to a woman over her lifetime if they were to experience the exact current age-specific fertility rates (ASFRs) through their lifetime and they were to live from birth until the end of their reproductive life. As of 2023, the total fertility rate ...

3. Birth rate - Wikipedia

   en.wikipedia.org/wiki/Birth_rate

   Birth rate. Birth rate, also known as natality, is the total number of live human births per 1,000 population for a given period divided by the length of the period in years. [1] The number of live births is normally taken from a universal registration system for births; population counts from a census, and estimation through specialized ...

4. Fertility - Wikipedia

   en.wikipedia.org/wiki/Fertility

   Fertility is an issue for people of both sexes. According to the Centers for Disease Control and Prevention, in 35% of couples who cannot conceive, the cause can be attributed to factors on both the female and male side. [1] Human fertility depends on various factors including nutrition, sexual behaviour, consanguinity, culture, instinct, endocrinology, timing of conception, economics ...

5. Age and female fertility - Wikipedia

   en.wikipedia.org/wiki/Age_and_female_fertility

   Age and female fertility. Female fertility is affected by age and is a major fertility factor for women. A woman's fertility is in generally good quality from the late teens to early thirties, although it declines gradually over time. [1] Around 35, fertility is noted to decline at a more rapid rate. [1] At age 45, a woman starting to try to ...

6. Gross reproduction rate - Wikipedia

   en.wikipedia.org/wiki/Gross_reproduction_rate

   Gross reproduction rate. The gross reproduction rate ( GRR) is the average number of daughters a woman would have if she survived all of her childbearing years, which is roughly to the age of 45, subject to the age-specific fertility rate and sex ratio at birth throughout that period. This rate is a measure of replacement fertility if mortality ...

7. Natality in population ecology - Wikipedia

   en.wikipedia.org/wiki/Natality_in_population_ecology

   Natality in population ecology is the scientific term for birth rate. Along with mortality rate, natality rate is used to calculate the dynamics of a population. They are the key factors in determining whether a population is increasing, decreasing or staying the same in size. Natality is the greatest influence on a population's increase.