BOVE, Isabel; MARDONES SANTANDER, Francisco; KLAPS, Leticia    DOMINGUEZ DE LANDA, Angélica. Relationship between fetus growth and maternal anthropometrics in Uruguay. []. , 30, 3, pp.643-649. ISSN 1699-5198.  https://dx.doi.org/10.3305/nh.2014.30.3.7648.

Background: There are no data available about the combined influence of the pregestational body mass index (PG-BMI) and the gestational weight gain (GWG) on the birth-weight (<3000 g, ≥4000 g) in Uruguay. Objectives:To determine the prevalence of different categories of PG-BMI and GWG and then find out combined and independent risk at birth: <3000 g or intrauterine growth restriction (IUGR) and ≥ 4000 g (macrosomia) on a nationwide sample of mothers and newborns. Methods: Cohort study with prospective data from 23,832 pregnant women, with classification of the pregestational nutrition status according to the US PG-BMI pattern. GWG was classified according to a proposal from Denmark. The independent and combined risks from the different categories of PG-BMI and GWG with IUGR and macrosomia were determined by means of relative risk (RR). Results: RR for RCIU and macrosomia were statistically relevant in their independent association with PG-BMI and GWG. A high risk for IUGR was identified in pregnant women with low PG-BMI and a high risk for macrosomia in those with a high PG-BMI (overweight or obesity). Also the analysis of the combined influence revealed significant associations between PG-BMI and GWG. Conclusions: There is an independent and combined effect of the mothers variables on the perinatal results. We suggest comparing this study results, where categories were taken from the US PG-BMI pattern and from the Danish GWG pattern, with other patterns.

: Nutrition during pregnancy; Birth weight; Body mass index; Weight gain.

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