Evidence map›Paper›PMID 40097956›Full record

ArticleBMC pregnancy and childbirth2025

The impact of maternal HBeAg carries status and elevated ALT values on adverse outcomes: a population-based cohort study in 198,049 pregnancies.

Kang Zou, Shiyao Huang, Chunrong Liu, Peng Zhao, Jin Guo, Wanqiang Wei, Jingwen Chen, Guanhua Yao, Yongyao Qian, Biao Rong and 4 more

Abstract read
In one paragraph

Article in BMC pregnancy and childbirth, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

14 authors.

Kang ZouInstitute of Integrated Traditional Chinese and Western Medicine, West China Hospital, Chinese Evidence-based Medicine Center, Sichuan University, Chengdu, Sichuan, 610041, China.
Shiyao HuangInstitute of Integrated Traditional Chinese and Western Medicine, West China Hospital, Chinese Evidence-based Medicine Center, Sichuan University, Chengdu, Sichuan, 610041, China.
Chunrong LiuInstitute of Integrated Traditional Chinese and Western Medicine, West China Hospital, Chinese Evidence-based Medicine Center, Sichuan University, Chengdu, Sichuan, 610041, China.
Peng ZhaoInstitute of Integrated Traditional Chinese and Western Medicine, West China Hospital, Chinese Evidence-based Medicine Center, Sichuan University, Chengdu, Sichuan, 610041, China.
Jin GuoInstitute of Integrated Traditional Chinese and Western Medicine, West China Hospital, Chinese Evidence-based Medicine Center, Sichuan University, Chengdu, Sichuan, 610041, China.
Wanqiang WeiInstitute of Integrated Traditional Chinese and Western Medicine, West China Hospital, Chinese Evidence-based Medicine Center, Sichuan University, Chengdu, Sichuan, 610041, China.
Jingwen ChenInstitute of Integrated Traditional Chinese and Western Medicine, West China Hospital, Chinese Evidence-based Medicine Center, Sichuan University, Chengdu, Sichuan, 610041, China.
Guanhua YaoXiamen Health Commission, Xiamen, 361000, China.
Yongyao QianXiamen Health Commission, Xiamen, 361000, China.
Biao RongXiamen Health and Medical Big Data Center, Xiamen, 361008, China.
Moliang ChenXiamen Health and Medical Big Data Center, Xiamen, 361008, China.
Yiquan XiongInstitute of Integrated Traditional Chinese and Western Medicine, West China Hospital, Chinese Evidence-based Medicine Center, Sichuan University, Chengdu, Sichuan, 610041, China. xiongyq@scu.edu.cn.
Xin SunInstitute of Integrated Traditional Chinese and Western Medicine, West China Hospital, Chinese Evidence-based Medicine Center, Sichuan University, Chengdu, Sichuan, 610041, China. sunxin@wchscu.cn.
Jing TanInstitute of Integrated Traditional Chinese and Western Medicine, West China Hospital, Chinese Evidence-based Medicine Center, Sichuan University, Chengdu, Sichuan, 610041, China. tanjing84@outlook.com.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundHepatitis B virus (HBV) infection is a common public health problem, and maternal HBV infection can cause adverse outcomes in both mothers and fetuses. However, the influence of hepatitis B e antigen (HBeAg) serostatus on obstetric outcomes is not well established. This study aims to investigate the prevalence trend of maternal HBV infection in China, and its impact on obstetric outcomes.

methodsThis retrospective cohort study used data from an established population-based pregnancy registry (REPRESENT) in Xiamen, China. Maternal hepatitis B surface antigen (HBsAg) and HBeAg serostatus were regularly tested at the first antenatal visits. Multivariable regression was conducted to evaluate the impact of maternal HBV infection on maternal and neonatal outcomes.

resultsFrom January 2015 to March 2019, 198,049 pregnancies were included. The overall prevalence of HBsAg + HBeAg + was 2.26% and has decreased during these years (relative risk 0.59, 95% CI 0.54-0.65). Compared to HBsAg-HBeAg- pregnancies, maternal HBsAg + HBeAg- was associated with a higher risk of intrahepatic cholestasis of pregnancy (ICP) (adjusted odds ratio 3.43, 95% CI 2.94-4.00) and cesarean section (1.04, 1.01-1.08). HBsAg + HBeAg + was further associated with a higher risk of ICP (3.44, 2.64-4.48), fetal distress (1.33, 1.05-1.67), and preterm birth (1.37, 1.04-1.81). In addition, subgroup analysis indicated that abnormal alanine aminotransferase status at the first antenatal visit may exacerbate the impact of maternal HBV infection on maternal and neonatal outcomes.

conclusionThe prevalence of maternal HBsAg + HBeAg + serostatus is still high, but has decreased over time. Given its significant adverse effects, prenatal screening for HBsAg and HBeAg should be performed. CLINICAL TRIAL NUMBER: Not applicable.

Indexed as

Alanine TransaminaseHepatitis BHepatitis B e AntigensPregnancy Complications, InfectiousAdultCesarean SectionChinaCholestasis, IntrahepaticCohort StudiesFemaleHepatitis B Surface AntigensHumansInfant, NewbornPregnancyPregnancy ComplicationsPregnancy OutcomeAlanine TransaminaseHepatitis B e AntigensHepatitis B Surface AntigensALTHBeAgHBVIntrahepatic cholestasis of pregnancyPregnancy

Identifiers

PMID40097956
PMCPMC11917017

What OpenQuestion holds

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LicenceCC BY-NC-ND
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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.