Maternal pre-pregnancy infection with hepatitis B virus and the risk of preterm birth: a population-based cohort study

The Lancet Global Health
Jue LiuYiping Zhang

Abstract

Preterm birth is the leading cause of child death in children younger than 5 years. Large cohort studies in developed countries have shown that maternal hepatitis B virus infection is associated with preterm birth, but there is little reliable evidence from China and other developing countries, where hepatitis B virus prevalence is intermediate or high. Hence, we designed this study to investigate the association between pre-pregnancy hepatitis B virus infection and risk of preterm and early preterm birth. Between Jan 1, 2010, and Dec 31, 2012, we did a population-based cohort study using data from 489 965 rural women aged 21-49 years who had singleton livebirths from 220 counties of China who participated in the National Free Preconception Health Examination Project. Participants were divided into three groups according to their pre-pregnancy status of hepatitis B virus infection: women uninfected with hepatitis B virus (control group), women who were HBsAg positive and HBeAg negative (exposure group 1), and women who were both HBsAg and HBeAg positive (exposure group 2). The primary outcome was preterm birth (gestation at less than 37 weeks). We used log-binomial regression to estimate adjusted risk ratios (aRR) of preterm bi...Continue Reading

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May 13, 2017·The Lancet Global Health·Qi-Tao Huang, Mei Zhong
Jan 11, 2020·Journal of Epidemiology and Community Health·Yimin QuYu Jiang
Oct 13, 2018·World Journal of Hepatology·Alberto Enrico MaraoloGuglielmo Borgia
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