[Anaemia prevalence in pregnant population]

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.

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.