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  2. Birth rate - Wikipedia

    en.wikipedia.org/wiki/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]

  3. Natality in population ecology - Wikipedia

    en.wikipedia.org/wiki/Natality_in_population_ecology

    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. Natality is shown as a crude birth rate or specific birth rate.

  4. List of countries by birth rate - Wikipedia

    en.wikipedia.org/.../List_of_countries_by_birth_rate

    Crude birth rate refers to the number of births over a given period divided by the person-years lived by the population over that period. It is expressed as number of births per 1,000 population. The article lists 233 countries and territories in crude birth rate. The first list is provided by Population Reference Bureau. [1]

  5. List of countries by total fertility rate - Wikipedia

    en.wikipedia.org/wiki/List_of_countries_by_total...

    Replacement fertility is the total fertility rate at which women give birth to enough babies to sustain population levels, assuming that mortality rates remain constant and net migration is zero. [10] If replacement level fertility is sustained over a sufficiently long period, each generation will exactly replace itself. [10]

  6. Birth rates in the US decline to lowest level in 35 years

    www.aol.com/article/news/2020/05/20/birth-rates...

    While birth rates are decreasing in most age groups there is one notable exception: rates for women in their 40s are increasing.

  7. Demographic transition - Wikipedia

    en.wikipedia.org/wiki/Demographic_transition

    In Stage 3 of the Demographic Transition Model (DTM), death rates are low and birth rates diminish, as a rule accordingly of enhanced economic conditions, an expansion in women's status and education, and access to contraception. The decrease in birth rate fluctuates from nation to nation, as does the time span in which it is experienced. [18]

  8. Which U.S. cities have the highest and lowest birth rates? - AOL

    www.aol.com/u-cities-highest-lowest-birth...

    The birth rate in major U.S. cities is lower than the national average. Across all locations, the average rate of women aged 15 to 50 having a child in 2022 is 5.2%, compared to 5.0% in major cities.

  9. Pregnancy rate - Wikipedia

    en.wikipedia.org/wiki/Pregnancy_rate

    Live birth rate is the percentage of all cycles that lead to live birth, and is the pregnancy rate adjusted for miscarriages and stillbirths. For instance, in 2007, Canadian clinics reported a live birth rate of 27% with in vitro fertilisation. [5]