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Nutrición Hospitalaria

versión On-line ISSN 1699-5198versión impresa ISSN 0212-1611

Resumen

VILA-CANDEL, Rafael et al. Relationship between maternal body mass index, gestational weight gain and birth weight: prospective study in a health department. Nutr. Hosp. [online]. 2015, vol.31, n.4, pp.1551-1557. ISSN 1699-5198.  http://dx.doi.org/10.3305/nh.2015.31.4.8495.

Objectives: To ascertain the relationship between maternal weight gain and birth weight, in every pre-gestational body mass index (BMI) category. Material and Methods: A two-stage sampling observational and descriptive study was carried out in the health department of La Ribera (Valencia, Spain). The sample was divided into four groups according to pre-gestational BMI. Findings: 140 pregnant women were studied. We observed rising pre-gestational weight gain (PWG) and trimestral gradients. There was a higher increase from the first to the second trimester than from the second to the third trimester in every pre-gestational BMI category. According to the international recommendations of Institute of Medicine, 16.4% of women had an inferior gestational weight gain (GWG), 38.6% were within the recommendations and 45% were above them. The pre-gestational BMI, categorized by the WHO, is related to the birth weight, showing a statistical significance (F=6.636 and p<0.001). Obese mothers with a higher weight gain than the recommended have newborns with higher birth weight (4,353±821.924 g) and, underweight mothers with a lower weight gain than the recommended, have newborns with lower birth weights (2,900±381.83 g) than the rest of the groups. Conclusions: The absolute gestational weight gain did not show a statistical significance compared to the birth weight in any of the pre-gestational BMI categories and, as an isolated indicator, is not an added value to the prenatal quality control.

Palabras clave : Pregnancy; Birth weight; Anthropometry; Body mass index; Gestational weight gain.

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