Evidence map›Paper›PMID 33883610›Full record

ArticleScientific reports2021

Hepatitis B virus infection among pregnant mothers and children after the introduction of the universal vaccination program in Central Vietnam.

Masami Miyakawa, Lay-Myint Yoshida, Hien-Anh Thi Nguyen, Kensuke Takahashi, Tho Huu Le, Michio Yasunami, Koya Ariyoshi, Duc-Anh Dang, Hiroyuki Moriuchi

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
2.1field-weighted citation impact, top 13% 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

13 citing papers in PubMed, 1 synthesis or guideline pooled it, 17 citations in OpenAlex.

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  13. [Hepatitis B vaccines-history, achievements, challenges, and perspectives].Bundesgesundheitsblatt, Gesundheitsforschung, Gesundheitsschutz · 2022
    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

9 authors at 4 institutions in 2 countries.

Masami MiyakawaDepartment of Pediatrics, Nagasaki University Hospital, Nagasaki University, Nagasaki, 852-8102, Japan.
Lay-Myint YoshidaDepartment of Pediatric Infectious Diseases, Institute of Tropical Medicine, Nagasaki University, Nagasaki, 852-8523, Japan. lmyoshi@nagasaki-u.ac.jp.
Hien-Anh Thi NguyenNational Institute of Hygiene and Epidemiology, Hanoi, 100000, Vietnam.
Kensuke TakahashiDepartment of Clinical Medicine, Institute of Tropical Medicine, Nagasaki University, Nagasaki, 852-8523, Japan.
Tho Huu LeKhanh Hoa Provincial Health Service Department, Nha Trang, 650000, Vietnam.
Michio YasunamiDepartment of Clinical Medicine, Institute of Tropical Medicine, Nagasaki University, Nagasaki, 852-8523, Japan.
Koya AriyoshiDepartment of Clinical Medicine, Institute of Tropical Medicine, Nagasaki University, Nagasaki, 852-8523, Japan.
Duc-Anh DangNational Institute of Hygiene and Epidemiology, Hanoi, 100000, Vietnam.
Hiroyuki MoriuchiDepartment of Pediatrics, Nagasaki University Hospital, Nagasaki University, Nagasaki, 852-8102, Japan.
Nagasaki University · JPNagasaki University Hospital · JPNational Institute Of Hygiene And Epidemiology · VNKhanh Hoa General Hospital · VN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

A birth cohort study was conducted in Khan Hoa Province, central Vietnam between 2009 and 2012 to determine the seroprevalence of hepatitis B virus (HBV) in pregnant women and their children, and associated risk factors. We enrolled 1987 pregnant women with their babies at the birth phase, and 12.6% (95% confidence interval [CI]: 11.1-14.0) of mothers were hepatitis B surface antigen (HBsAg)+. At 2-year follow-up phase, 1339 (67.4%) children were enrolled of whom 76.6% completed hepatitis B vaccines (HepB) and 1.9% (95% CI: 1.2-2.7) were HBsAg+. When mothers were hepatitis B e antigen (HBeAg)+, 28.3% of children have got infected even with complete HepB. HBV infection in mothers, hepatitis B surface antibody (anti-HBs antibody) below the seroprotective level in children, and mothers with pre-pregnancy low body mass index were associated with HBV infection in children. Meanwhile, HBV infection in children, older maternal age, no or incomplete doses of HepB, and boys were associated with anti-HBs antibody below the seroprotective level in children. Our birth cohort study determined a low rate of congenital HBV infection and associated risk factors in Vietnam, however further studies are needed to advance prevention including anti-viral therapy in pregnant women at high risk.

Indexed as

Mass VaccinationAdolescentAdultChild, PreschoolFemaleHepatitis BHepatitis B Surface AntigensHepatitis B VaccinesHumansInfantInfant, NewbornMalePregnancyPregnancy Complications, InfectiousProspective StudiesRisk FactorsHepatitis B Surface AntigensHepatitis B Vaccines

Identifiers

PMID33883610
PMCPMC8060295
OpenAlexW3156907918

What OpenQuestion holds

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LicenceCC BY
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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.