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  2. Weight and height percentile - Wikipedia

    en.wikipedia.org/wiki/Weight_and_Height_Percentile

    By doing this, doctors can track a child's growth over time and monitor how a child is growing in relation to other children. There are different charts for boys and girls because their growth rates and patterns differ. For both boys and girls there are two sets of charts: one for infants ages 0 to 36 months and another for ages 2 and above.

  3. 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). [2] The MGRS was a multifaceted study which gathered data from 8,500 children from widely differing ethnic backgrounds and cultural settings. [ 2 ]

  4. Tanner scale - Wikipedia

    en.wikipedia.org/wiki/Tanner_scale

    Due to natural variation, individuals pass through the Tanner stages at different rates, depending in particular on the timing of puberty.Among researchers who study puberty, the Tanner scale is commonly considered the "gold standard" for assessing pubertal status when it is conducted by a trained medical examiner. [5]

  5. Growth chart - Wikipedia

    en.wikipedia.org/wiki/Growth_chart

    Sample growth chart for use with American boys from birth to age 36 months. 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.

  6. Puberty - Wikipedia

    en.wikipedia.org/wiki/Puberty

    Maximal adult height is achieved at an average age of 15 years for an average female and 18 years for an average male. Potential fertility (sometimes termed nubility) usually precedes completion of growth by 1–2 years in females and 3–4 years in males. Stage 5 typically represents maximal gonadal growth and adult hormone levels.

  7. CodeHS - Wikipedia

    en.wikipedia.org/wiki/CodeHS

    CodeHS was selected as one of three education technology companies to take part in the 2013 Innovation Challenge, part of the NBC Education Nation initiative. [6] Innovation Nation challenge participants CodeHS, Teachley, and GigaBryte participated in a series of challenges in October 2013, culminating in a live pitch contest broadcast live on NBC during the Education Nation Summit.

  8. Thelarche - Wikipedia

    en.wikipedia.org/wiki/Thelarche

    The most common age for females to develop isolated premature thelarche is between 0 and 2 years, with a prevalence rate between 2.2 and 4.7 percent of all female infants. [ 7 ] [ 17 ] The breasts of these females typically exhibit alternating progression and regression patterns of growth in 6-week intervals, often completely decreasing in size ...

  9. Breast development - Wikipedia

    en.wikipedia.org/wiki/Breast_development

    A possible mechanism of the negative regulatory effects of the VDR on breast development may be indicated by a study of vitamin D 3 supplementation in women which found that vitamin D 3 suppresses cyclooxygenase-2 (COX-2) expression in the breast, and by doing so, reduces and increases, respectively, the levels of prostaglandin E 2 (PGE 2) and ...