The first year of life, e.g., from birth to one year of age is technically called baby. How quick a baby grows is of great significance in many aspects. To assist parents as well as medical professionals to monitor baby growth, Growth Charts are developed and used as guidance. Following is one of such charts provided by the Centers for Disease Control and Prevention of the United States.
The black thick line in the chart indicates average body weight (either in kilogram or pound as showing by the axis on the left) by month after birth (as showing by the axis at the bottom). On average, most American babies weight slightly less than 8lb or 3.5 kilograms. By 6 months of age, boys grow to about 17.5 lb (or 8 kilograms) while girls grow to about 16 lb (or 7.3 kilograms). When a child becomes one year of age, boys will grow to 23 lb (12 kilograms) and girls will grow to 21 lb (9.5 kilograms). The thin lines above and below the thick line indicate the range of body weight of a baby. A baby is considered normal if its body weight is within the 25th and the 75th range.
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Prepared by Jim Sweet. July 10, 2011 with data from multi-wwebsites.
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