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In the case of chromosomal or genetic disorders, there may be a clear rationale for the development of reference growth data based on altered growth potential. However, other conditions exist which are also associated with altered growth patterns but where there is not a clear rationale for the development of such reference data. The most important reason for this is that there is no identifiable alteration in the genetic potential for growth in these conditions; rather, there is some other factor, either biological or environmental, which may influence the child's ability to achieve that potential. Growth charts have been developed for a number of conditions for which growth patterns are altered. These include:
The current CDC recommendation is to use the CDC growth charts in all cases. However, recognizing the limitations of these special charts, which are discussed below, some clinicians may elect to use them, for example to illustrate to families how a specific condition can alter a child's growth potential. Use of the special
charts developed to assess growth of children who have conditions with
no genetic or chromosomal basis for an altered growth pattern, such as
cerebral
palsy, is not recommended.
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