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Inicio Medicina Clínica (English Edition) Anaemia prevalence in pregnant population
Journal Information
Vol. 158. Issue 6.
Pages 270-273 (March 2022)
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Vol. 158. Issue 6.
Pages 270-273 (March 2022)
Brief report
Anaemia prevalence in pregnant population
Prevalencia de anemia en población gestante
Isabel Otamendi Goicoecheaa, Saioa Zalba Marcosb, M. Ascensión Zabalegui Goicoecheaa, Arkaitz Galbetec, Maite Osinaga Alcarazd, José Antonio García Ercee,
Corresponding author

Corresponding author.
a Servicio de Análisis Clínicos, Complejo Hospitalario de Navarra, Servicio Navarro de Salud, Osasunbidea, Pamplona, Navarra, Spain
b Servicio de Hematología y Hemoterapia, Complejo Hospitalario de Navarra, Servicio Navarro de Salud, Osasunbidea, Pamplona, Navarra, Spain
c Navarrabiomed-Complejo Hospitalario de Navarra-Universidad Pública de Navarra (UPNA), REDISSEC, IdiSNA, Pamplona, Navarra, Spain
d Servicio de Ginecología y Obstetricia, Hospital García Orcoyen, Estella, Servicio Navarro de Salud, Osasunbidea, Pamplona, Navarra, Spain
e Banco de Sangre y Tejidos de Navarra, Servicio Navarro de Salud, Osasunbidea, Pamplona, Navarra, Grupo Español de Rehabilitación Multimodal (GERM), Instituto Aragonés de Ciencias de la Salud, Zaragoza, Spain, PBM Group, Hospital La Paz Institute for Health Research (IdiPAZ), Madrid, Spain
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Figures (1)
Tables (2)
Table 1. Mean haemoglobin and prevalence of anaemia based on SEHH criteria in global data and in patients with complete progression control.
Table 2. Prevalence of anaemia by trimester of pregnancy based on our population data.
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Gestational anaemia, which has specific haemoglobin (Hb) reference values in each trimester of gestation, increases the risk of maternal mortality and complications both in pregnancy and in the first months of the newborn’s life. The objective of this study is to evaluate haemoglobin levels in pregnant women in our population, to determine the prevalence of gestational anaemia and to propose reference values specific to them.

Material and methods

Retrospective study of all blood counts requested in pregnancy and postpartum controls during 2019.


9995 gestation haemograms corresponding to 5507 pregnant women were reviewed. Of these, 1134 patients underwent complete follow-up in 2019. The prevalence data for anaemia were 1.8%, 11.8% and 13.2% in each trimester respectively, and the global prevalence in pregnancy was 22.6%. Regarding postpartum anaemia, its prevalence with respect to all pregnant women was 2.99%, increasing to 38.2% in those patients with complications during delivery.


The prevalence of gestational anaemia in our population is somewhat higher than in countries like ours. Therefore, there is room for improvement in our current clinical protocols. It is important to assess updating analytical controls with other more adequate parameters to determine iron reserves, as this is the main cause of anaemia.


La anemia gestacional, que tiene unos valores de referencia de hemoglobina específicos en cada trimestre de gestación, aumenta el riesgo de mortalidad materna y de complicaciones fetales y neonatales. El objetivo de este estudio es evaluar los niveles de hemoglobina en las gestantes de nuestra población y conocer la prevalencia de anemia gestacional.

Material y métodos

Estudio retrospectivo de los hemogramas solicitados en los controles de gestación durante el año 2019.


Se revisaron 9.995 hemogramas de gestación correspondientes a 5.507 embarazadas, 1134 pacientes tuvieron el control evolutivo completo en 2019. Los datos de prevalencia de anemia fueron de un 1,8%, 11,8% y 13,2% en cada trimestre respectivamente. La prevalencia global fue de un 22,6%.


La prevalencia de anemia gestacional en nuestra población es algo superior a la consultada en la bibliografía y varía en función del cálculo del límite inferior de normalidad (hemoglobina media poblacional y criterios de normalidad clásico y de Beutler&Waalen). Esto nos pone en alerta sobre la existencia de un margen de mejora en nuestros protocolos clínicos actuales.

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