Evidence map›Paper›PMID 29433428›Full record

ArticleBMC infectious diseases2018

Comparison of hepatitis E virus seroprevalence between HBsAg-positive population and healthy controls in Shandong province, China.

Li Zhang, Zechun Jiang, Jingjing Lv, Jiaye Liu, Bingyu Yan, Yi Feng, Li Li, Guomin Zhang, Fuzhen Wang, Aiqiang Xu

Open access · goldAbstract readComparative Study
In one paragraph

Article in BMC infectious diseases, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 1 pooled it
1.1field-weighted citation impact, top 23% of its field
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

9 citing papers in PubMed, 1 synthesis or guideline pooled it, 16 citations in OpenAlex.

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  6. Review
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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

10 authors at 3 institutions in 1 country.

Li ZhangAcademy of Preventive Medicine, Shandong University, Jinan, China.
Zechun JiangRushan Center for Disease Control and Prevention, Weihai, China.
Jingjing LvShandong Provincial Key Laboratory of Infectious Disease Control and Prevention, Shandong Center for Disease Control and Prevention, Jinan, China.
Jiaye LiuShandong Provincial Key Laboratory of Infectious Disease Control and Prevention, Shandong Center for Disease Control and Prevention, Jinan, China.
Bingyu YanShandong Provincial Key Laboratory of Infectious Disease Control and Prevention, Shandong Center for Disease Control and Prevention, Jinan, China.
Yi FengShandong Provincial Key Laboratory of Infectious Disease Control and Prevention, Shandong Center for Disease Control and Prevention, Jinan, China.
Li LiChinese Center for Disease Control and Prevention, Beijing, China.
Guomin ZhangChinese Center for Disease Control and Prevention, Beijing, China.
Fuzhen WangChinese Center for Disease Control and Prevention, Beijing, China.
Aiqiang XuAcademy of Preventive Medicine, Shandong University, Jinan, China. aqxuepi@163.com.
Shandong Center for Disease Control and Prevention · CNChinese Center For Disease Control and Prevention · CNShandong Academy of Environmental Science · CN

Funding

a cooperation project of China Foundation for Hepatitis Prevention and Control, Chinese Center for Disease Control and Prevention and Shandong Provincial Center for Disease Control and Prevention 2014-32-R-019Taishan Scholar Program of Shandong Province ts20151105the Major Project of National Science and Technology 2013ZX10004902the Shandong Medical Health Science and Technology Development Program 2011HD006the Shandong Medical Health Science and Technology Development Program 2016WS0386
6 · The paper itself

Abstract

backgroundPersons with chronic hepatitis B (CHB) infection were reported to suffer severe disease after hepatitis E virus (HEV) superinfection, but the studies regarding HEV seroprevalence in this population were limited. A recent study in Vietnam found higher HEV seroprevalence among CHB patients compared with healthy controls.

methodsA community-based case-control study was conducted in two counties of Shandong province, China, where hepatitis E incidence was at the highest (Rushan) and lowest (Zhangqiu) in the province based on data from routine public health surveillance. Four townships were selected randomly from each county and all residents in these townships were tested for hepatitis B surface antigen (HBsAg). Those tested positive for HBsAg (CHB group) and the 1:1 age and sex-matched HBsAg-negative residents (control group) were included. Anti-HEV IgM and IgG were tested and positive rates of IgG and IgM were compared between the CHB group and the control group.

resultsIn total, 2048 CHB participants and 2054 controls were included in the study. In the CHB group, HEV IgG seroprevalence was 9.16% (95% CI: 7.47-11.09) in Zhangqiue and 38.06% (95% CI: 35.07-41.19) in Rushan (P < 0.001); the corresponding rates of IgM were 0.1% (95% CI: 0.002-0.54) and 1.57% (95% CI: 0.90-2.53), respectively (P < 0.001). HEV IgG seroprevalence was similar between CHB group and the control group in both counties (P = 0.21, P = 0.47, respectively) and the same results were found for the positive rate of IgM (P = 0.103, P = 0.262, respectively). Multivariable analysis showed the status of HBsAg was not independently associated with the status of anti-HEV IgG in either Zhangqiu or Rushan [P = 0.187, OR = 1.23(95% CI: 0.90, 1.68); P = 0.609, OR = 1.05 (95% CI: 0.87, 1.26)].

conclusionsThe seroprevalence of HEV varies greatly in different geographic areas, but the seroprevalence is similar between populations with and without CHB. CHB patients residing in high HEV endemic areas might be at higher risk for HBV-HEV superinfection.

Indexed as

AdolescentAdultAgedAged, 80 and overCase-Control StudiesChildChinaFemaleHepatitis AntibodiesHepatitis B, ChronicHepatitis B Surface AntigensHepatitis B virusHepatitis EHepatitis E virusHumansImmunoglobulin GHepatitis AntibodiesHepatitis B Surface AntigensImmunoglobulin GImmunoglobulin MChronic hepatitis BHepatitis E virusSeroprevlanceSuperinfection

Identifiers

PMID29433428
PMCPMC5810058
OpenAlexW2797888735

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.