title: [Hemoglobin levels in pregnant women seen in health care centers of the Peruvian Ministry of Health, 2011].
abstract: OBJECTIVE
  Determine hemoglobin levels and prevalence of anemia in pregnant women seen in health care centers of the Ministry of Health at national level.
  
  
  METHODS
  Cross-cut study where the database of the Information System on the Nutritional Health of Children under 5 and Pregnant Women (SIEN) were analyzed. 287 691 records of pregnant women examined at the health care centers of the Peruvian Ministry of Health in 2011 were included, hemoglobin levels corrected by height, age, gestational age, altitude and prevalence of anemia (light, moderate and serious) were analyzed. Descriptive statistics and the chi-square method were used.
  
  
  RESULTS
  Nationwide prevalence of anemia in pregnant women was 28.0%, with mild anemia being at 25.1%, moderate anemia at 2.6% and severe anemia at 0.2%. Hemoglobin levels are higher in older and younger women during the first months of pregnancy, prevalence of anemia decreases with altitude. Furthermore, prevalence is higher in the Highland regions. Huancavelica was the region with higher prevalence of anemia (53.6%), followed by Puno with 51.0%.
  
  
  CONCLUSIONS
  Hemoglobin levels get higher as the mother gets older, and they go down in keeping with the gestation trimester and altitude. Huancavelica has the highest prevalence of anemia in pregnant women.
authors.affiliation: Centro Nacional de Alimentación y Nutrición, Instituto Nacional de Salud, Lima, Perú. omunares@ins.gob.pe
authors.forename: Oscar
authors.initials: O
authors.lastname: Munares-García
authors.forename: Guillermo
authors.initials: G
authors.lastname: Gómez-Guizado
authors.forename: Juan
authors.initials: J
authors.lastname: Barboza-Del Carpio
authors.forename: José
authors.initials: J
authors.lastname: Sánchez-Abanto
mesh_terms: D000293:Adolescent; D000328:Adult; D000531:Altitude; D000740:Anemia / Q000097:blood* / Q000453:epidemiology*; D002648:Child; D003430:Cross-Sectional Studies; D005260:Female; D006268:Health Facilities; D006454:Hemoglobins / Q000032:analysis*; D006801:Humans; D008875:Middle Aged; D010568:Peru / Q000453:epidemiology; D011247:Pregnancy; D011250:Pregnancy Complications, Hematologic / Q000097:blood* / Q000453:epidemiology*; D015995:Prevalence; D055815:Young Adult
chemical_list: D006454:Hemoglobins