7/26/2012

Some newborns may be treated as small or large for their gestational age because of errors in neonatal growth charts, McMaster University researchers report in Pediatrics. They found 14 of 16 studies used for developing birth-weight charts contained systematic plotting errors and estimated that 5% of newborns would be misclassified due to the errors. The researchers recommend plotting birth-weight values in the middle of the newborn's gestational week rather than at the beginning, which shifts the curve leftward.

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