The Effect of Pregnancy in the Hemoglobin Concentration of Pregnant Women: A Longitudinal Study

Background . The objective of this study was to estimate and identify the determinants of hemoglobin concentration before pregnancy, during pregnancy, and after labor and delivery. Methods . A prospective cohort study design was implemented. Data were collected from May 2015 to September 2018. A simple random sampling technique was used to select the participants. An interview technique was used to collect the data. Blood samples were collected...