Evidence map›Paper›PMID 40583393›Full record

ArticleThe journal of obstetrics and gynaecology research2025

Frequency of pregnant HBV/HCV carriers and status of their internal medicine consultation: A nationwide survey in Japan.

Manabu Ogoyama, Shunji Suzuki, Shin-Ichi Hoshi, Akihiko Sekizawa, Yoko Sagara, Isamu Ishiwata, Tadaichi Kitamura

Abstract read
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In one paragraph

Article in The journal of obstetrics and gynaecology research, 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. Article
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

7 authors.

Manabu OgoyamaDivision of Maternal and Child Health, Japan Association of Obstetricians and Gynecologists, Tokyo, Japan.ORCID https://orcid.org/0000-0001-9410-1782
Shunji SuzukiDivision of Maternal and Child Health, Japan Association of Obstetricians and Gynecologists, Tokyo, Japan.
Shin-Ichi HoshiDivision of Maternal and Child Health, Japan Association of Obstetricians and Gynecologists, Tokyo, Japan.
Akihiko SekizawaDivision of Maternal and Child Health, Japan Association of Obstetricians and Gynecologists, Tokyo, Japan.
Yoko SagaraDivision of Maternal and Child Health, Japan Association of Obstetricians and Gynecologists, Tokyo, Japan.
Isamu IshiwataDivision of Maternal and Child Health, Japan Association of Obstetricians and Gynecologists, Tokyo, Japan.
Tadaichi KitamuraInfectious Diseases, Japanese Foundation for Sexual Health Medicine, Tokyo, Japan.

Funding

Infectious Diseases, the Japanese Foundation for Sexual Health Medicine
6 · The paper itself

Abstract

aimThe present study investigated the prevalence of pregnant hepatitis B (HBV) and hepatitis C (HCV) carriers and their internal medicine consultation rates in Japan.

methodsA questionnaire was sent to 1931 delivery facilities regarding their delivery management policies and care of pregnant HBV and HCV carriers who delivered between January and December 2023, including internal medicine consultation rates.

resultsResponses were received from 1077 facilities (55.8%). The prevalence of HBV was 0.14% in Japanese women (406/288847) and 3.00% (196/6527) in non-Japanese women. The prevalence of HBV in 12 Japanese teenagers (≤19 years) was 0.53%, which was significantly higher than that in adult pregnant women (0.14%) (p < 0.001). HBe antigen was positive in 12.6% of pregnant HBV carriers. The overall prevalence of HCV was 0.23% (684/295374), with similar rates in Japanese and non-Japanese women (0.23% vs. 0.31%), and 3.1% (21/684) had high HCV-RNA levels. Internal medicine consultations were performed on 64.8% (295/455) of known HBV carriers before pregnancy and on 66.7% (98/147) of those diagnosed during pregnancy. Regarding HCV, consultation rates were 10.5% (68/645) before pregnancy and 69.2% (27/39) during pregnancy.

conclusionsThe prevalence of pregnant hepatitis virus carriers in Japan is approximately 0.2% for both HBV and HCV, with a high HBV rate in teenagers. Only 60%-70% of patients receive proper internal medicine consultations, highlighting the need for increased awareness among patients, physicians, and healthcare systems.

Indexed as

Carrier StateHepatitis BHepatitis CInternal MedicinePregnancy Complications, InfectiousReferral and ConsultationAdolescentAdultFemaleHumansJapanPregnancyPrevalenceSurveys and QuestionnairesYoung Adulthepatitis B virushepatitis C virushepatitis virus carrierinternal medicine consultationpregnancy

Identifiers

PMID40583393
PMCPMC12207190

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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.