Evidence map›Paper›PMID 32228111›Full record

ArticleThe journal of maternal-fetal & neonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians2022

High-altitude residence alters blood-pressure course and increases hypertensive disorders of pregnancy.

Beth Bailey, Anna G Euser, Kirk A Bol, Colleen G Julian, Lorna G Moore

Open access · greenAbstract read
In one paragraph

Article in The journal of maternal-fetal & neonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed, 1 pooled it
5.2field-weighted citation impact, top 5% 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

26 citing papers in PubMed, 1 synthesis or guideline pooled it, 35 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Review
  4. Article
  5. Current Understanding on Hypertensive Disorders in Pregnancy.International journal of general medicine · 2026
    Review
  6. Article
  7. Review
  8. Review
  9. Altitude and risk of pre-eclampsia: insights from a large-scale epidemiological study in Ecuador.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2025
    Article
  10. Beyond blood flow: the multifaceted role of AMPK in regulating fetal growth at high altitudes.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2025
    Review
  11. The uteroplacental circulation at high altitude: adaptation and maladaptation.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2025
    Review
  12. Article
  13. Article
  14. Integrative transcriptomic analysis reveals alternative splicing complexity and transcriptomic diversity in porcine placentas across altitudes.DNA research : an international journal for rapid publication of reports on genes and genomes · 2025
    Article
  15. Placental Adaptation to Hypoxia: The Case of High-Altitude Pregnancies.International journal of environmental research and public health · 2025
    Review
  16. Article
  17. Article
  18. Surviving birth at high altitude.The Journal of physiology · 2024
    Review
  19. Article
  20. 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

5 authors at 2 institutions in 1 country.

Beth BaileyDivision of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, University of Colorado Denver - Anschutz Medical Campus, Aurora, CO, USA.ORCID 0000-0002-5637-9983
Anna G EuserDivision of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, University of Colorado Denver - Anschutz Medical Campus, Aurora, CO, USA.ORCID 0000-0002-4272-052X
Kirk A BolCenter for Health and Environmental Data, Colorado Department of Public Health and Environment, Denver, CO, USA.ORCID 0000-0002-9208-6424
Colleen G JulianDivision of Personalized Medicine and Bioinformatics, Department of Medicine, University of Colorado Denver - Anschutz Medical Campus, Aurora, CO, USA.ORCID 0000-0001-8857-0152
Lorna G MooreDivision of Reproductive Sciences, Department of Obstetrics and Gynecology, University of Colorado Denver - Anschutz Medical Campus, Aurora, CO, USA.ORCID 0000-0001-5637-0025
University of Colorado Anschutz Medical Campus · USColorado Department of Public Health and Environment · US

Funding

UCHSC: Building Interdisciplinary Research Careers in Women's HealthK12HD057022 · NICHD · UNIVERSITY OF COLORADO DENVER · PI REGENSTEINER, JUDITH G., SANTORO, NANETTE F. · 2007 to 2023
$8.5M
Effects of chronic hypoxia and AMPK activation on uteroplacental perfusion, placental metabolism and the regulation of fetal growthR01HD088590 · NICHD · UNIVERSITY OF COLORADO DENVER · PI Colleen Glyde Julian, LORNA G. MOORE · 2016 to 2026
$4.3M
Epigenetic and Fetal Origins of Hypoxia-Induced Pulmonary HypertensionR01HL138181 · NHLBI · UNIVERSITY OF COLORADO DENVER · PI JULIAN, COLLEEN GLYDE · 2018 to 2021
$1.6M
Antenatal Exposures and Non-Communicable Disease(ANDES): Building research capacity to identify and treat causes of NCD in BoliviaR21TW010797 · FIC · UNIVERSITY OF COLORADO DENVER · PI JULIAN, COLLEEN GLYDE, MOORE, LORNA G. · 2017 to 2018
$389k
FIC NIH HHS R21 TW010797NHLBI NIH HHS R01 HL138181NICHD NIH HHS K12 HD057022NICHD NIH HHS R01 HD088590
6 · The paper itself

Abstract

objectivesTo determine whether the full spectrum of hypertensive disorders of pregnancy (HDP) - comprising gestational hypertension; preeclampsia with or without severe features; eclampsia; and

methodsA retrospective cohort study was conducted using statewide birth-certificate data to compare the frequency of gestational hypertension, preeclampsia (with or without severe features), eclampsia, HELLP Syndrome, or all HDP combined in 617,958 Colorado women who lived at high vs. low altitude (<2500 m) and delivered during the 10-year period, 2007-2016. We also compared blood-pressure changes longitudinally during pregnancy and the frequency of HDP in 454 high (>2500 m)- vs. low (<1700 m)-altitude Colorado residents delivering in 2013 and 2014, and matched for maternal risk factors. Data were compared between altitudes using

resultsStatewide, high-altitude residence increased the frequency of each HDP disorder separately or all combined by 33%. High-altitude women studied longitudinally also had more HDP accompanied by higher blood pressures throughout pregnancy. The frequency of low birth weight infants (<2500 g), 5-min Apgar scores <7, and NICU admissions were also greater at high than low altitudes statewide, with the latter being accounted for by the increased incidence of HDP.

conclusionsResidence at high altitude constitutes a risk factor for HDP and recommends increased clinical surveillance. The increased incidence also makes high altitude a natural laboratory for evaluating the efficacy of predictive biomarkers or new therapies for HDP.

Indexed as

Hypertension, Pregnancy-InducedPre-EclampsiaAltitudeBlood PressureFemaleHumansInfantInfant, NewbornPregnancyRetrospective StudiesHypoxiaintrauterine growth restrictionpreeclampsia

Identifiers

PMID32228111
PMCPMC7529930
OpenAlexW3013997228

What OpenQuestion holds

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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.