Introduction:

the management of labor can have consequences for both the mother and the newborn, one of them is anemia.

Objective:

To determine hemoglobin concentration in pre and postpartum, and factors associated with postpartum anemia in primigravid woman younger than 30 years old who were attended in a public hospital in Lima, Peru.

Material and Method:

a retrospective, cross-sectional study in 294 postpartum primigravid woman younger than 30 years old attended in the National Institute of Perinatal and Maternal Health in Lima, Peru. Hemoglobin concentrations before and after birth, socio-demographic data and associated factors.

Results:

67.0% of pregnant women were among 20 to 29 years of age. In vaginal delivery, the median hemoglobin before birth was 12.5 g/dL and postpartum was 10.6 g/dL, there was a reduction of 1.9 g/dL. In vaginal delivery, 27.1% presented anemia prepartum and 56.4% postpartum; in cesarean sections, 42.9% had anemia before delivery and 78.6% after. The factors that were associated were bleeding (ORa: 53.3 95% CI 6.6-427.2 p<0,001), prolonged labor (ORa: 6.7 95% CI 1.5-30.1 p=0,013), premature rupture of membranes ORa: 2.7 IC95% 1.0-5.5 p=0,041) and perineal tear (ORa: 2.5 IC95% 1.0-6.1 p=0,041).

Conclusions:

there is a reduction in hemoglobin levels of around 1g/dL of hemoglobin in the postpartum period. Factors associated with postpartum hemorrhage were postpartum haemorrhage, prolonged labor, premature rupture of membranes, and perineal tear. MÉD.UIS. 2017;30(2):37-44.

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