title: Variations in estimates of underweight, overweight, and obesity in pregnant women from Argentina comparing two reference charts.
abstract: OBJECTIVE
  The prevalence of low weight, normal weight, overweight, and obesity in a sample of Argentinian pregnant women using two reference charts, the Rosso and Mardones (RM) and the Calvo Chart were compared.
  
  
  METHODS
  A descriptive, cross-sectional, comparative study of data from pregnant women beneficiaries of food aid programs collected in the period 2003-2010 in the province of Buenos Aires, Argentina was performed.
  
  
  RESULTS
  Evaluations with the Calvo and RM charts showed statistically significant differences in the prevalence of all nutritional conditions (low weight, 22% vs. 28%; normal weight, 45% vs. 28%; overweight, 21% vs. 15%; obesity, 11% vs. 29%, respectively). Such differences were more marked in normal weight and obese pregnant women.
  
  
  CONCLUSIONS
  Changes in prevalences as a result of replacing the RM with the Calvo Chart should be borne in mind to avoid misinterpretations about changes in the nutritional condition of pregnant women.
authors.affiliation: IDIP - Instituto de Desarrollo e Investigaciones Pediátricas "Prof. Dr. Fernando E. Viteri," Hospital de Niños "Sor María Ludovica" (Comisión de Investigaciones Científicas de la Provincia de Buenos Aires, Ministerio de Salud de la Provincia de Buenos Aires), La Plata, Argentina.
authors.forename: Agustina
authors.initials: A
authors.lastname: Malpeli
authors.affiliation: IDIP - Instituto de Desarrollo e Investigaciones Pediátricas "Prof. Dr. Fernando E. Viteri," Hospital de Niños "Sor María Ludovica" (Comisión de Investigaciones Científicas de la Provincia de Buenos Aires, Ministerio de Salud de la Provincia de Buenos Aires), La Plata, Argentina.
authors.forename: María G
authors.initials: MG
authors.lastname: Ferrari
authors.affiliation: IDIP - Instituto de Desarrollo e Investigaciones Pediátricas "Prof. Dr. Fernando E. Viteri," Hospital de Niños "Sor María Ludovica" (Comisión de Investigaciones Científicas de la Provincia de Buenos Aires, Ministerio de Salud de la Provincia de Buenos Aires), La Plata, Argentina.
authors.forename: Horacio F
authors.initials: HF
authors.lastname: González
mesh_terms: D000328:Adult; D000886:Anthropometry / Q000379:methods*; D001118:Argentina / Q000453:epidemiology; D001835:Body Weight; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D009765:Obesity / Q000453:epidemiology*; D050177:Overweight / Q000453:epidemiology*; D011247:Pregnancy; D015995:Prevalence; D013851:Thinness / Q000453:epidemiology*; D055815:Young Adult