Resumen

GRADOS VALDERRAMA, Flor de María; CABRERA EPIQUEN, Ronald  y  DIAZ HERRERA, Jorge. Estado nutricional pregestacional y ganancia de peso materno durante la gestación y su relación con el peso del recién nacido. Rev Med Hered [online]. 2003, vol.14, n.3, pp.128-133. ISSN 1018-130X.

Objective: To determine the existing relation between weight gain during pregnancy and the newborn’s weight, based on different maternal pregestacional conditions according to the BMI (Body Mass Index). Materials and Methods: A descriptive retrospective longitudinal study was designed. 1016 women who gave birth at the Hospital Nacional Cayetano Heredia between January 1995 and September 2000 were selected based on inclusion and exclusion criteria. The population was stratified into four categories pursuant to pregestacional BMI (Underweight:< 19.8, Ideal: 19.8 -26, Overweight: 26.1-29, Obese: >29). A multiple regression analysis was carried out that include pregestational BMI, weighed maternal weight gain, maternal age , number of prenatal controls and parity as independent and birth weight as dependent variables. A multiple regression analysis was then carried out for each pregestacional BMI group. Results:: Pregestacional BMI and weight gain during pregnancy significantly influence the newborn’s weight. In women who are underweight, have an ideal BMI or overweight, the newborn’s weight increases 42.15, 34.17 and 21.47gr, respectively, for each kg of weighed maternal weight gained. The group of obese pregnant women are not included in this list. Conclusions: There is direct lineal r elation between BMI pregestational variables and maternal weight gained during pregnancy with the newborn’s weight, whether individual or associated, for underweight women, those with ideal BMI and those who are overweight. ( Rev Med Hered 2003; 14: 128-133).

Palabras clave : Maternal nutrition; Body Mass Index; pregnancy; weight gain; birth weight.

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