title: [Length and weight at birth: the role of maternal nutrition].
abstract: OBJECTIVE
  To identify determinants of weight (BW) and length at birth (BL).
  
  
  METHODS
  We studied 481 mother-newborn pairs in three Mexico City hospitals. Multiple regression models were developed to identify statistically significant predictors of BW and BL with respect to a predetermined biological model. Independent variables included were: maternal anthropometry, age, smoking habits, and civil status, parental education, obstetric history, hypertension, and neonatal characteristics.
  
  
  RESULTS
  In the group with calf circumference (CC), height and head circumference below the median BW was 133, 92 and 96 g lower (+/- 35 standard error -SE-, p < 0.01) than the group above the median, adjusting for socioeconomic, obstetric history, and neonatal characteristics (NC). In the group below the median CC or height, BL was 5.8 or 6.2 mm (+/- 1.9 mm SE, p < 0.01) respectively, adjusting for obstetric history and NC.
  
  
  CONCLUSIONS
  Results suggest that maternal anthropometry is the most important predictor of birth size and that predictors for BW and BL differ.
authors.affiliation: Centro de Investigación en Salud Poblacional (CISP), Instituto Nacional de Salud Pública (INSP), México. tgonzale@insp3.insp.mx
authors.forename: T
authors.initials: T
authors.lastname: González-Cossío
authors.forename: L H
authors.initials: LH
authors.lastname: Sanín
authors.forename: M
authors.initials: M
authors.lastname: Hernández-Avila
authors.forename: J
authors.initials: J
authors.lastname: Rivera
authors.forename: H
authors.initials: H
authors.lastname: Hu
mesh_terms: D000328:Adult; D001724:Birth Weight; D001827:Body Height; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D009035:Mothers; D009747:Nutritional Physiological Phenomena
vernacular_title: Longitud y peso al nacer: el papel de la nutrición materna.