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Risks for preterm delivery and low birth weight are independently increased by severity of maternal anaemia
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Women's and Children's Health.
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2009 (English)In: SAMJ South African Medical Journal, ISSN 0256-9574, Vol. 99, no 2, 98-102 p.Article in journal (Refereed) Published
Abstract [en]

Objective. To estimate the effect of the severity of maternal anaemia on various perinatal outcomes. Design. A cross-sectional study. Setting. Labour Ward, Muhimbili National Hospital, Dar es Salaam, Tanzania. Methods. The haemoglobin of eligible pregnant women admitted for delivery between 15 November 2002 and 15 February 2003 was measured. Data on socio-demographic characteristics, iron supplementation, malaria prophylaxis, blood transfusion during current pregnancy, and current and previous pregnancy outcomes were collected and analysed. Anaemia was classified according to the World Health Organization (WHO) standards: normal - Hb >= 11.0 g/dl; mild - Hb 9.0 - 10.9 g/dl; moderate - Hb 7.0 - 8.9 g/dl; and severe - Hb <7.0 g/dl. Logistic regression analysis was performed to estimate the severity of anaemia. The following outcome measures were used: preterm deliver), (<37 weeks), Apgar score, stillbirth, early neonatal death, low birth weight (LBW) (<2 500 g) and very low birth weight (VLBW) (<1 500 g). Results. A total of 1 174 anaemic and 547 non-anaemic women were enrolled. Their median age was 24 years (range 14 - 46 years) and median parity was 2 (range 0 - 17). The prevalence of anaemia and severe anaemia was 68% and 5.8%, respectively. The risk of preterm delivery increased significantly with the severity of anaemia, with odds ratios of 1.4, 1.4 and 4.1 respectively for mild, moderate and severe anaemia. The corresponding risks for LBW and VLBW were 1.2 and 1.7, 3.8 and 1.5, and 1.9 and 4.2 respectively. Conclusion. The risks of preterm delivery and LBW increased in proportion to the severity of maternal anaemia.

Place, publisher, year, edition, pages
2009. Vol. 99, no 2, 98-102 p.
National Category
Medical and Health Sciences
URN: urn:nbn:se:uu:diva-148712ISI: 000264131200014PubMedID: 19418670OAI: oai:DiVA.org:uu-148712DiVA: diva2:402804
Available from: 2011-03-09 Created: 2011-03-09 Last updated: 2011-03-09Bibliographically approved

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