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  2. National Child Development Study - Wikipedia

    en.wikipedia.org/wiki/National_Child_Development...

    Records of birth deaths to 7,618 women and about 5,000 autopsy reports were also collected over the period of March–May 1958. [ 6 ] In 1963 the Plowden Committee which was investigating the education of primary children in the UK and the transition to secondary school, commissioned a follow-up report on the children from the NCDS.

  3. List of countries by past fertility rate - Wikipedia

    en.wikipedia.org/wiki/List_of_countries_by_past...

    This is a list of countries showing past fertility rate, ranging from 1950 to 2015 in five-year periods, as estimated by the 2017 revision of the World Population Prospects database by the United Nations Population Division. The fertility rate equals the expected number of children born per woman in her child-bearing years.

  4. 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. [8] If replacement level fertility is sustained over a sufficiently long period, each generation will exactly replace itself. [8]

  5. British birth cohort studies - Wikipedia

    en.wikipedia.org/wiki/British_birth_cohort_studies

    Birth cohort studies in Britain are four long-term medical and social studies, carried out over the lives of a group of participants, from birth. The earliest two started in 1946 and 1958. The earliest two started in 1946 and 1958.

  6. List of countries by number of births - Wikipedia

    en.wikipedia.org/wiki/List_of_countries_by...

    Country Number of births (2023) India 23,219,489 China 8,899,881 Nigeria 7,509,758 Pakistan 6,882,058 Indonesia 4,482,359 Democratic Republic of the Congo 4,369,683

  7. List of countries by birth rate - Wikipedia

    en.wikipedia.org/wiki/List_of_countries_by_birth...

    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]

  8. East Asian societies have the world’s lowest birth rates—and ...

    www.aol.com/finance/east-asian-societies-world...

    What are governments currently doing to stop falling birth rates? Cheung, before his stint as an academic, was the director of Singapore’s population planning unit between 1987 and 1994.

  9. Mid-20th century baby boom - Wikipedia

    en.wikipedia.org/wiki/Mid-20th_century_baby_boom

    United States birth rate (births per 1000 population). [1] The US Census Bureau defines baby boomers as those born between mid-1946 and mid-1964 (shown in red). [2]The middle of the 20th century was marked by a significant and persistent increase in fertility rates in many countries, especially in the Western world.