Evidence map›Paper›PMID 30829011›Full record

SynthesisJournal of Zhejiang University. Science. B

Ambient air pollution and adverse birth outcomes: a systematic review and meta-analysis.

Le-Qian Guo, Yu Chen, Bai-Bing Mi, Shao-Nong Dang, Dou-Dou Zhao, Rong Liu, Hong-Li Wang, Hong Yan

RetractedAbstract readMeta-AnalysisSystematic ReviewRetracted Publication
In one paragraph

Synthesis in Journal of Zhejiang University. Science. B. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It has been retracted, and should not be counted. Cited by 32 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed, 4 pooled it
–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

32 citing papers in PubMed, 4 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Environmental Risk Factors and Health: An Umbrella Review of Meta-Analyses.International journal of environmental research and public health · 2021
    Pooled it
  4. Pooled it
  5. Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Observational
  13. Article
  14. Article
  15. Article
  16. Preterm birth among pregnant women living in areas with high social vulnerability.American journal of obstetrics & gynecology MFM · 2021
    Article
  17. Article
  18. Article
  19. Article
  20. The Coronavirus Might be Paradoxically Beneficial on the Risk of Autism.Journal of autism and developmental disorders · 2021
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors.

Le-Qian GuoDepartment of Epidemiology and Biostatistics, School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an 710061, China.
Yu ChenMedical Records Department, the First Hospital of Yulin, Yulin 718000, China.
Bai-Bing MiDepartment of Epidemiology and Biostatistics, School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an 710061, China.
Shao-Nong DangDepartment of Epidemiology and Biostatistics, School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an 710061, China.
Dou-Dou ZhaoDepartment of Epidemiology and Biostatistics, School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an 710061, China.
Rong LiuDepartment of Epidemiology and Biostatistics, School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an 710061, China.
Hong-Li WangDepartment of Epidemiology and Biostatistics, School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an 710061, China.
Hong YanDepartment of Epidemiology and Biostatistics, School of Public Health, Xi'an Jiaotong University Health Science Center, Xi'an 710061, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Several reviews have assessed the relationship between exposure to ambient air pollution and adverse birth outcomes during pregnancy, but the results remain controversial. The objective of this study was to assess this correlation quantitatively and to explore sources of heterogeneity. We included all published case-control or cohort studies that evaluated the correlation between ambient air pollution and low birth weight (LBW), preterm birth (PTB), and small for gestational age (SGA). Analytical methods and inclusion criteria were provided on the PROSPERO website (CRD42018085816). We evaluated pooled effects and heterogeneity. Subgroup analyses (grouped by exposure period, study settings, study design, exposure types, data source, Newcastle-Ottawa quality score (NOS), and adjustment for smoking or meteorological factors) were also conducted and publication bias was examined. The risk of bias in systematic reviews (ROBIS) tool was used to evaluate the overall risk of bias in this review. Forty studies met the inclusion criteria. We observed pooled odds ratios (ORs) of 1.03-1.21 for LBW and 0.97-1.06 for PTB when mothers were exposed to CO, NO

Indexed as

Environmental ExposureMaternal ExposurePregnancy OutcomeAir PollutantsAir PollutionBiasFemaleHumansInfant, Low Birth WeightInfant, NewbornInfant, PrematureInfant, Small for Gestational AgeOdds RatioPregnancyPremature BirthRisk AssessmentAir PollutantsAir pollution; Low birth weight; Preterm birth; Meta-analysis; Adverse birth outcome

Identifiers

PMID30829011
PMCPMC6421124

What OpenQuestion holds

Textmetadata
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.