Evidence map›Paper›PMID 33804885›Full record

ArticleInternational journal of environmental research and public health2021

Hypertensive Disorders during Pregnancy (HDP), Maternal Characteristics, and Birth Outcomes among Japanese Women: A Hokkaido Study.

Kritika Poudel, Sumitaka Kobayashi, Chihiro Miyashita, Atsuko Ikeda-Araki, Naomi Tamura, Yu Ait Bamai, Sachiko Itoh, Keiko Yamazaki, Hideyuki Masuda, Mariko Itoh and 2 more

Open access · goldAbstract read
In one paragraph

Article in International journal of environmental research and public health, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 1 pooled it
3.6field-weighted citation impact, top 6% 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

19 citing papers in PubMed, 1 synthesis or guideline pooled it, 37 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Impact of cumulative blood pressure load during early pregnancy on the risk of low birth weight: the BOSHI study.Hypertension research : official journal of the Japanese Society of Hypertension · 2026
    Article
  4. Article
  5. Article
  6. Article
  7. Examining maternal and fetal outcomes across various subtypes of hypertension during pregnancy.International journal of cardiology. Cardiovascular risk and prevention · 2025
    Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. The association of a panel of circulating markers with hypertensive disorders of pregnancy: the jury is still out.Hypertension research : official journal of the Japanese Society of Hypertension · 2023
    Article
  14. Article
  15. Article
  16. Article
  17. Hypertensive disorders of pregnancy: definition, management, and out-of-office blood pressure measurement.Hypertension research : official journal of the Japanese Society of Hypertension · 2022
    Review
  18. Article
  19. 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

12 authors at 3 institutions in 1 country.

Kritika PoudelFaculty of Health Sciences, Hokkaido University, Sapporo 060-0812, Japan.
Sumitaka KobayashiCenter for Environmental and Health Sciences, Hokkaido University, Sapporo 060-0812, Japan.
Chihiro MiyashitaCenter for Environmental and Health Sciences, Hokkaido University, Sapporo 060-0812, Japan.
Atsuko Ikeda-ArakiCenter for Environmental and Health Sciences, Hokkaido University, Sapporo 060-0812, Japan.ORCID 0000-0002-3065-262X
Naomi TamuraCenter for Environmental and Health Sciences, Hokkaido University, Sapporo 060-0812, Japan.ORCID 0000-0003-2116-4023
Yu Ait BamaiCenter for Environmental and Health Sciences, Hokkaido University, Sapporo 060-0812, Japan.
Sachiko ItohCenter for Environmental and Health Sciences, Hokkaido University, Sapporo 060-0812, Japan.
Keiko YamazakiCenter for Environmental and Health Sciences, Hokkaido University, Sapporo 060-0812, Japan.
Hideyuki MasudaCenter for Environmental and Health Sciences, Hokkaido University, Sapporo 060-0812, Japan.
Mariko ItohCenter for Environmental and Health Sciences, Hokkaido University, Sapporo 060-0812, Japan.
Kumiko ItoCenter for Environmental and Health Sciences, Hokkaido University, Sapporo 060-0812, Japan.
Reiko KishiCenter for Environmental and Health Sciences, Hokkaido University, Sapporo 060-0812, Japan.
Hokkaido University · JPHokkaido University of Science · JPSapporo University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Hypertension during pregnancy causes a greater risk of adverse birth outcomes worldwide; however, formal evidence of hypertensive disorders during pregnancy (HDP) in Japan is limited. We aimed to understand the association between maternal characteristics, HDP, and birth outcomes. In total, 18,833 mother-infant pairs were enrolled in the Hokkaido study on environment and children's health, Japan, from 2002 to 2013. Medical records were used to identify hypertensive disorders and birth outcomes, namely, small for gestational age (SGA), SGA at full term (term-SGA), preterm birth (PTB), and low birth weight (LBW). The prevalence of HDP was 1.9%. Similarly, the prevalence of SGA, term-SGA, PTB, and LBW were 7.1%, 6.3%, 7.4%, and 10.3%, respectively. The mothers with HDP had increased odds of giving birth to babies with SGA (2.13; 95% Confidence Interval (CI): 1.57, 2.88), PTB (3.48; 95%CI: 2.68, 4.50), LBW (3.57; 95%CI: 2.83, 4.51) than normotensive pregnancy. Elderly pregnancy, low and high body mass index, active and passive smoking exposure, and alcohol consumption were risk factors for different birth outcomes. Therefore, it is crucial for women of reproductive age and their families to be made aware of these risk factors through physician visits, health education, and various community-based health interventions.

Indexed as

Hypertension, Pregnancy-InducedPremature BirthAgedChildFemaleHumansInfant, Low Birth WeightInfant, NewbornInfant, Small for Gestational AgeJapanPregnancyRisk Factorsbirth outcomescohort studyhypertensive disorders during pregnancymothers

Identifiers

PMID33804885
PMCPMC8038052
OpenAlexW3139147531

What OpenQuestion holds

Textmetadata
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.