Percentile graphs — Percentile growth charts are the most beneficial and the most popular form of growth standards. At first glance, it is a confusing picture with lines, but that very well possible to assess the child’s growth.

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The horizontal axis is monitored by the child’s age, the vertical axis the value of the parameter, such as weight or BMI. Graphs are different for boys and girls, so you need to choose the correct chart by sex of the child. The graph is then determined point, connecting the child’s age and the monitored parameter (e.g. weight). If there is need to place the corresponding 25th percentile, this means that the child’s weight is greater than or equal to a quarter (25%) of its peers. 75% of children of the same age but is more severe.

The growth zone — The percentile graphs has also been defined zone in which the parameter value is considered normal (e.g., the child’s weight appropriate to the age and sex). This band called “broader standard” is most often defined there 3rd to 97th percentile. In practice, this means that 94% of children in the age and sex are in this interval. Zone between the 25th and 75 percentile, which is half the value of all the children, “the middle-values” completely average value is then 50 percentile. As the chart “work” — Do percentile chart should be regularly record the child’s height. It is already in its first year of life assigned to its growth zone and it then grows in parallel with the standard growth curve.