Using the WHO Growth Standard Charts
WHO Length-for-Age Chart Compared to the CDC Length-for-Age Chart
- In general, the WHO and the CDC length-for-age growth charts are somewhat similar.
WHO Weight-for-Age Chart Compared to the CDC Weight-for-Age Chart
- The WHO weight-for-age charts show a pattern of slower weight gain after about 3 months of age since they are based on the weights of breastfed infants.
- When changing from the WHO-weight-for-age chart to the CDC weight-for-age chart at 2 years of age, the weight-for-age percentiles may change downward to a lower percentile.
For example, a weight of 26 ¾ pounds for a 24-month old boy is at about the 50th percentile on the WHO weight-for-age chart. The same weight on the CDC weight-for-age chart is between the 25th and the 50th percentile. Both percentile classifications are within the healthy range.
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in section 5