Hepatitis B virus infection characterized by HBsAg positivity during pregnancy is a well‐recognized issue in developing countries, but the association between HBsAg positivity and adverse maternal outcomes remains uncertain. To examine the association between HBsAg positivity during pregnancy and adverse maternal outcomes, a retrospective cohort study was conducted in Sichuan province, China. Deliveries were recorded from six hospitals between 1 January 2009 and 31 December 2010. Pre‐eclampsia, gestational diabetes mellitus (GDM), postpartum haemorrhage (PPH), intrahepatic cholestasis, Caesarean section and placenta previa were prespecified adverse maternal outcomes. We used two multivariate logistic regression models to assess the association between HBsAg positivity and adverse maternal outcomes. In total, 948 (4.2%) pregnant women were HBsAg positive from 22 374 deliveries. Pregnant women with positive HBsAg had higher risk of GDM (aOR1.41, 95%CI 1.15–1.74), PPH (1.44, 1.13–1.83), intrahepatic cholestasis (1.74, 1.40–2.16) and Caesarean section (1.24, 1.06–1.45). No statistical associations were found between HBsAg positivity and pre‐eclampsia (1.36, 0.94–1.97), and placenta previa (1.21, 0.87–1.67). HBsAg positivity during pregnancy was associated with higher risk of multiple adverse maternal outcomes. Although the causality has yet to be established, efforts may be warranted in routine care, particularly in those with high risk for adverse maternal outcomes, given the volume population infected with HBsAg. Future studies are needed to establish causality and examine the impact of HBeAg on the adverse outcomes.
Journal of Viral Hepatitis – Wiley
Published: Oct 1, 2016
Keywords: ; ; ; ;
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