Birth weight of infants born without congenital defects. II. Effect of tobacco and parity of the mother on the wight of the newborn infant

We analyzed the effect that number of gestations, smoking and number of cigarettes per day during pregnancy have on the birthweight using a sample of 14,097 liveborns without birth defects identifiable within the first three days of life. To our purposes, we controlled the effect of gestational age,...

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Bibliographic Details
Published in:Anales españoles de pediatría Vol. 33; no. 1; p. 16
Main Authors: Martínez-Frías, M L, Prieto Valiente, L, Bermejo Sánchez, E, Gaya Moreno, F
Format: Journal Article
Language:Spanish
Published: Spain 01-07-1990
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