title: Prevalence of iron, folate, and vitamin B12 deficiencies in 20 to 49 years old women: Ensanut 2012.
abstract: OBJECTIVE
  To describe the prevalence of iron, folate, and B12 deficiencies in Mexican women of reproductive age from the National Health and Nutrition Survey (Ensanut) 2012.
  
  
  METHODS
  Data came from a national probabilistic survey, representative from rural and urban areas, and different age groups. Blood samples were obtained from 4 263, 20 to 49 years old women for serum ferritin, vitamin B12 and serum folate concentrations. The prevalence of deficiencies, was assessed using adjusted logistic regression models.
  
  
  RESULTS
  The deficiency of folate was 1.9% (95%CI 1.3-2.8), B12 deficiency was 8.5% (95%CI 6.7-10.1) and iron deficiency was 29.4% (95%CI 26.5-32.2). No differences were found when compared with 2006, 24.8% (95%CI 22.3-27.2).
  
  
  CONCLUSIONS
  The vitamin B12 deficiency is still a problem for women of reproductive age and their offspring in Mexico, while folate deficiency disappeared as a problem. Iron deficiency needs prevention and fortification strategies.
authors.affiliation: Centro de Investigación en Nutrición y Salud, Instituto Nacional de Salud Pública, Cuernavaca, Morelos, México.
authors.forename: Teresa
authors.initials: T
authors.lastname: Shamah-Levy
authors.affiliation: Centro de Investigación en Nutrición y Salud, Instituto Nacional de Salud Pública, Cuernavaca, Morelos, México.
authors.forename: Salvador
authors.initials: S
authors.lastname: Villalpando
authors.affiliation: Centro de Investigación en Nutrición y Salud, Instituto Nacional de Salud Pública, Cuernavaca, Morelos, México.
authors.forename: Fabiola
authors.initials: F
authors.lastname: Mejía-Rodríguez
authors.affiliation: Centro de Investigación en Nutrición y Salud, Instituto Nacional de Salud Pública, Cuernavaca, Morelos, México.
authors.forename: Lucía
authors.initials: L
authors.lastname: Cuevas-Nasu
authors.affiliation: Centro de Investigación en Nutrición y Salud, Instituto Nacional de Salud Pública, Cuernavaca, Morelos, México.
authors.forename: Elsa Berenice
authors.initials: EB
authors.lastname: Gaona-Pineda
authors.affiliation: Centro de Investigación en Nutrición y Salud, Instituto Nacional de Salud Pública, Cuernavaca, Morelos, México.
authors.forename: Eduardo
authors.initials: E
authors.lastname: Rangel-Baltazar
authors.affiliation: Centro de Investigación en Nutrición y Salud, Instituto Nacional de Salud Pública, Cuernavaca, Morelos, México.
authors.forename: Norma
authors.initials: N
authors.lastname: Zambrano-Mujica
mesh_terms: D000328:Adult; D000886:Anthropometry; D002097:C-Reactive Protein / Q000032:analysis; D004032:Diet; D005260:Female; D005293:Ferritins / Q000097:blood; D005492:Folic Acid / Q000097:blood; D005494:Folic Acid Deficiency / Q000097:blood / Q000453:epidemiology*; D006297:Health Services Accessibility; D006801:Humans; D007501:Iron / Q000097:blood; D000090463:Iron Deficiencies; D008800:Mexico / Q000453:epidemiology; D008875:Middle Aged; D009017:Morbidity / Q000639:trends; D009749:Nutrition Surveys; D012959:Socioeconomic Factors; D014805:Vitamin B 12 / Q000097:blood; D014806:Vitamin B 12 Deficiency / Q000097:blood / Q000453:epidemiology*; D055815:Young Adult
chemical_list: D002097:C-Reactive Protein; D005293:Ferritins; D005492:Folic Acid; D007501:Iron; D014805:Vitamin B 12