3. Results
The demographic and clinical characteristics are shown
in Table 1. Iron deficiency anemia was observed in 6.5%,
depleted iron stores in 32.2%, and anemia for other reasons in
11.8%. The mean gestational age at study enrolment was 16.3±
1.4 weeks. The mean hemoglobin concentration at enrolment
was 11.8 ± 0.9 g/dL and serum ferritin was 33.5 ± 27.8