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  2. Growth chart - Wikipedia

    en.wikipedia.org/wiki/Growth_chart

    A growth chart is used by pediatricians and other health care providers to follow a child's growth over time. Growth charts have been constructed by observing the growth of large numbers of healthy children over time. The height, weight, and head circumference of a child can be compared to the expected parameters of children of the same age and ...

  3. Bone age - Wikipedia

    en.wikipedia.org/wiki/Bone_age

    Bone age is the degree of a person's skeletal development. In children, bone age serves as a measure of physiological maturity and aids in the diagnosis of growth abnormalities, endocrine disorders, and other medical conditions. [1] [2] [3] As a person grows from fetal life through childhood, puberty, and finishes growth as a young adult, the ...

  4. 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] The number of live births is normally taken from a universal registration system for births; population counts from a census, and estimation through specialized demographic ...

  5. 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 ...

  6. Classification of childhood weight - Wikipedia

    en.wikipedia.org/wiki/Classification_of...

    In 2004, the World Health Organization began planning new growth chart references that could be used in all countries based on the WHO Multicentre Growth Reference Study (MGRS) (1997–2003). The MGRS was a multifaceted study which gathered data from 8,500 children from widely differing ethnic backgrounds and cultural settings.

  7. Growth hormone deficiency - Wikipedia

    en.wikipedia.org/wiki/Growth_hormone_deficiency

    When treated with GH, a severely deficient child will begin to grow faster within months. In the first year of treatment, the rate of growth may increase from half as fast as other children are growing to twice as fast (e.g., from 1 inch a year to 4 inches, or 2.5 cm to 10).

  8. Child development - Wikipedia

    en.wikipedia.org/wiki/Child_development

    Child development. A child using fingers to make a small, circular hole in the sand, 1997. Child development involves the biological, psychological and emotional changes that occur in human beings between birth and the conclusion of adolescence . Childhood is divided into three stages of life which include early childhood, middle childhood, and ...

  9. Demographics of the United States - Wikipedia

    en.wikipedia.org/wiki/Demographics_of_the_United...

    Since the early 1970s the birth rate has been below the replacement rate of 2.1 with 1.72 children per woman in 2018. [40] The drop in the U.S. fertility rate from 2.08 per woman in 2007 to 1.76 in 2017 was mostly due to the declining birth rate of Hispanics, teenagers, and young women, although the birth rate for older women rose.

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