Evidence map›Paper›PMID 31547235›Full record

ArticleInternational journal of environmental research and public health2019

Air Pollution and Preterm Birth: Do Air Pollution Changes over Time Influence Risk in Consecutive Pregnancies among Low-Risk Women?

Pauline Mendola, Carrie Nobles, Andrew Williams, Seth Sherman, Jenna Kanner, Indulaxmi Seeni, Katherine Grantz

Open access · goldAbstract read
In one paragraph

Article in International journal of environmental research and public health, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
1.2field-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

12 citing papers in PubMed, 1 synthesis or guideline pooled it, 21 citations in OpenAlex.

  1. Pooled it
  2. Importance of STAT3 signaling in preeclampsia (Review).International journal of molecular medicine · 2025
    Review
  3. Article
  4. Article
  5. Article
  6. Air Pollution and Aeroallergens as Possible Triggers in Preterm Birth Delivery.International journal of environmental research and public health · 2023
    Article
  7. Article
  8. Article
  9. Climate change, women's health, and the role of obstetricians and gynecologists in leadership.International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics · 2021
    Article
  10. World Prematurity Day: it takes an NIH village to prevent preterm birth and improve treatments for preterm infants.American journal of physiology. Lung cellular and molecular physiology · 2021
    Article
  11. Article
  12. 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

7 authors at 3 institutions in 1 country.

Pauline MendolaDivision of Intramural Population Health Research, Epidemiology Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, 6710B Rockledge Drive, Bethesda, MD 20895, USA. pauline.mendola@nih.gov.ORCID 0000-0001-5330-2844
Carrie NoblesDivision of Intramural Population Health Research, Epidemiology Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, 6710B Rockledge Drive, Bethesda, MD 20895, USA. Carrie.nobles@nih.gov.
Andrew WilliamsDivision of Intramural Population Health Research, Epidemiology Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, 6710B Rockledge Drive, Bethesda, MD 20895, USA. andrew.d.williams@aol.com.ORCID 0000-0002-0411-3171
Seth ShermanThe Emmes Company, 401 N Washington St # 700, Rockville, MD 20850, USA. ssherman@emmes.com.ORCID 0000-0003-3667-9898
Jenna KannerDivision of Intramural Population Health Research, Epidemiology Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, 6710B Rockledge Drive, Bethesda, MD 20895, USA. m.kanner@nih.gov.ORCID 0000-0002-9883-9159
Indulaxmi SeeniUniversity of California Davis School of Medicine, 4610 X Street, Sacramento, CA 95817, USA. icseeni@gmail.com.
Katherine GrantzDivision of Intramural Population Health Research, Epidemiology Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development, 6710B Rockledge Drive, Bethesda, MD 20895, USA. katherine.grantz@nih.gov.
Eunice Kennedy Shriver National Institute of Child Health and Human Development · USEmmes (United States) · USUniversity of California, Davis · US

Funding

NICHD NIH HHS HHSN275200800002I
6 · The paper itself

Abstract

Since the 2000s, air pollution has generally continued to decrease in the U.S. To investigate preterm birth (PTB) risk associated with air pollutants in two consecutive pregnancies, we estimated exposures using modified Community Multiscale Air Quality models linked to the NICHD Consecutive Pregnancy Study. Electronic medical records for delivery admissions were available for 50,005 women with singleton births in 20 Utah-based hospitals between 2002-2010. We categorized whole pregnancy average exposures as high (>75th percentile), moderate (25-75) and low (<25). Modified Poisson regression estimated second pregnancy PTB risk associated with persistent high and moderate exposure, and increasing or decreasing exposure, compared to persistent low exposure. Analyses were adjusted for prior PTB, interpregnancy interval and demographic and clinical characteristics. Second pregnancy PTB risk was increased when exposure stayed high for sulfur dioxide (32%), ozone (17%), nitrogen oxides (24%), nitrogen dioxide (43%), carbon monoxide (31%) and for particles < 10 microns (29%) versus consistently low exposure. PTB risk tended to increase to a lesser extent for repeated PTB (19-21%) than for women without a prior PTB (22-79%) when exposure increased or stayed high. Area-level changes in air pollution exposure appear to have important consequences in consecutive pregnancies with increasing exposure associated with higher risk.

Indexed as

AdultAir PollutantsCarbon MonoxideEnvironmental ExposureFemaleHumansInfant, NewbornNitrogen DioxideNitrogen OxidesOzoneParticulate MatterPregnancyPremature BirthRisk AssessmentRisk FactorsSulfur DioxideAir PollutantsCarbon MonoxideNitrogen DioxideNitrogen OxidesOzoneParticulate MatterSulfur Dioxideair pollutioncarbon monoxidenitrogen oxidesozoneparticulate matterpregnancypreterm birthsulfur dioxide

Identifiers

PMID31547235
PMCPMC6765877
OpenAlexW2972799544

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.