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Effectiveness of primary level antenatal care in decreasing anemia at term in Tanzania
BACKGROUND: In Tanzania the prevalence of anemia in pregnancy is high inspite of a high antenatal attendance and an established national policy of routine hematinic supplementation and malaria chemosuppression to all pregnant women, free of cost in all antenatal clinics.
OBJECTIVES: To assess the effectiveness of reinforcing existing antenatal clinic routines for prevention and treatment of anemia in pregnancy, combined with individual and community health education.
METHODS: A prospective controlled intervention study in two antenatal clinics at primary level. At booking (median 24 weeks), 1045 women were screened for anemia and followed-up to late pregnancy (gestational age > or =34 weeks). In addition to hematinic and malaria prophylaxis, extra interventions at the study clinic included retraining of staff, group and individual counselling of women and community health education in the area.
RESULTS: There was a significant overall increase in median Hb from 10.1 g/dl at booking to 10.6 g/dl in late pregnancy, and prevalence of anemia (Hb < or =10.5 g/dl) was reduced from 60% at booking to 47%, at both clinics, with 57% reduction in the proportion with severe anemia (Hb <7.0 g/dl). Severely anemic women increased their median Hb by 3.2 g/dl during antenatal care. No additional effect was observed from an individual and community information program.
CONCLUSION: Ensuring an adequate supply of drugs seems to be the most important activity to achieve safe hemoglobin levels in pregnant women, but even an active antenatal program has a limited effect when anemia is highly prevalent and booking is late.