title: [Proposal of a new standard for the nutritional assessment of pregnant women].
abstract: BACKGROUND
  There is evidence to suggest that the criteria for nutritional assessment of pregnant women, used by the Chilean Ministry of Health, overestimates nutritional disturbances.
  
  
  OBJECTIVE
  To propose a new reference table to assess the nutritional status of pregnant women, based on body mass index.
  
  
  METHODS
  The table was theoretically defined using criteria for normality proposed by FAO and the weight increase during pregnancy that is associated with a lower maternal and fetal morbidity and mortality. In 665 pregnant women, weight, height, mid arm circumference and skinfolds were measured using standard techniques. Body mass index, arm fat and muscle area and percentage of body fat were calculated. Body composition for each nutritional category, derived from the body mass index or "Rosso-Mardones classification", was analyzed.
  
  
  RESULTS
  According to the new table, under weight women had lower percentage of body fat and mid arm circumference and overweight women had higher weight, skinfold thickness and percentage of body fat than the homologous groups defined according to Rosso-Mardones tables.
  
  
  CONCLUSIONS
  The proposed reference table may be useful to correct distortions generated by the current norms for nutritional assessment of pregnant women, proposed by the Chilean Ministry of Health. It has to be validated, analyzing its sensitivity, specificity and predictive value to predict fetal and maternal variables.
authors.affiliation: Departamento de Nutrición, Facultad de Medicina, Universidad de Chile, Santiago, Chile.
authors.forename: E
authors.initials: E
authors.lastname: Atalah
authors.forename: C
authors.initials: C
authors.lastname: Castillo
authors.forename: R
authors.initials: R
authors.lastname: Castro
authors.forename: A
authors.initials: A
authors.lastname: Aldea
mesh_terms: D000328:Adult; D015992:Body Mass Index; D002677:Chile; D015331:Cohort Studies; D005260:Female; D005320:Fetal Macrosomia; D005865:Gestational Age; D006801:Humans; D007230:Infant, Low Birth Weight; D007231:Infant, Newborn; D015596:Nutrition Assessment; D009752:Nutritional Status; D007744:Obstetric Labor Complications; D011237:Predictive Value of Tests; D011247:Pregnancy; D011295:Prenatal Care; D011446:Prospective Studies; D012015:Reference Standards; D012680:Sensitivity and Specificity; D014505:Urban Population
vernacular_title: Propuesta de un nuevo estándar de evaluación nutricional en embarazadas.