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The Effects Of Weight At Birth

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None of the interaction effects of weight at birth and time are significant in the models, only the main effect, meaning that there is no catch-up growth, at least until the age of three years. Children born with low weight are, on average between 0.1 and 0.4 kg, heavier than children born with a very low weight and between 0.8 and 1.2 kg heavier than children born with an extremely low weight. The authors also reported this absence of a catching-up effect of the weight at birth in their study of preterm low birth weight infants. The models agreed on a significant negative effect of gestational age at birth in the growth curves, meaning that, from gestational week 40 up to three years, more premature children are heavier than less premature

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