A new growth chart for preterm babies: Babson and Benda's chart updated with recent data and a new format.

BMC Pediatr · 2003 · PMC324406 · PMID 14678563

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a slight trendno p-value reported

Could a secular trend make the combining of the data invalid? There has been a slight trend towards an increase in birthweight of term infants in the United States and in Canada of 1 to 3 grams per year on average over the time frame that the data were collected [ 24 , 25 ].

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