Risk factors for malaria and adverse birth outcomes in a prospective cohort of pregnant women resident in a high malaria transmission area of Papua New Guinea
Publication Year 2015-05, Volume 109, Issue #5, Page 313-24
Journal Title
Trans R Soc Trop Med Hyg
Publication Type
Journal Article
BACKGROUND: Low birth weight (LBW), anaemia and malaria are common in Papua New Guinean women. METHODS: To identify risk factors for LBW, anaemia and preterm delivery (PTD), pregnant women recruited into a cohort study in Madang, Papua New Guinea, were followed to delivery. RESULTS: Of 470 women enrolled, delivery data were available for 328 (69.7%). By microscopy, 34.4% (113/328) of women had malaria parasitaemia at enrolment and 12.5% (41/328) at delivery; at each time point, PCR detected sub-microscopic parasitaemia in substantially more. Most infections were with Plasmodium falciparum; the remainder being predominantly P. vivax. Anaemia and smoking were associated with lower birth weight, and LBW (16.7%; 51/305) and PTD (21.8%; 63/290) were common. Histopathologically diagnosed chronic placental malaria was associated with LBW (adjusted odds ratio [aOR] 3.3; p=0.048) and PTD (aOR 4.2; p=0.01). Lack of maternal education predisposed to PTD. Sub-microscopic parasitaemia at delivery appeared to increase the risk of LBW. Of the genetic polymorphisms, Southeast Asian ovalocytosis, alpha(+)-thalassaemia and complement receptor 1 (CR1) deficiency, a CR1 heterozygous genotype was associated with decreased risk of anaemia and substantial but non-significant effects were noted in other comparisons. CONCLUSIONS: In coastal Papua New Guinea, malaria and anaemia are important causes of adverse pregnancy outcomes.
WEHI Research Division(s)
Population Health And Immunity
PubMed ID
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Creation Date: 2015-05-20 10:11:26
Last Modified: 2019-04-01 09:01:55
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