Evidence map›Paper›PMID 30681619›Full record

ArticleMedicine2019

The association between ambient air pollution and birth defects in four cities in Hunan province, China, from 2014 to 2016.

Lili Xiong, Zenghui Xu, Hua Wang, Zhiyu Liu, Donghua Xie, Aihua Wang, Fanjuan Kong

Open access · goldAbstract read
In one paragraph

Article in Medicine, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
4.1field-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

11 citing papers in PubMed, 47 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Understanding the Pathways from Prenatal and Post-Birth PMInternational journal of environmental research and public health · 2021
    Observational
  8. Article
  9. Maternal exposure to ambient SOEnvironmental science and pollution research international · 2021
    Article
  10. Article
  11. 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 at 2 institutions in 1 country.

Lili XiongHunan Province Maternal and Children Care Hospital, Changsha, China.
Zenghui XuChangsha Environment Protection College, Changsha, China.
Hua WangHunan Province Maternal and Children Care Hospital, Changsha, China.
Zhiyu LiuHunan Province Maternal and Children Care Hospital, Changsha, China.
Donghua XieHunan Province Maternal and Children Care Hospital, Changsha, China.
Aihua WangHunan Province Maternal and Children Care Hospital, Changsha, China.
Fanjuan KongHunan Province Maternal and Children Care Hospital, Changsha, China.
Changsha Environmental Protection College · CNHunan Provincial Maternal and Child Health Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This study was performed to assess whether air pollution was positively associated with birth defects and if a specific pregnancy stage played a role. This was a population-based case-control study comprising 153,822 perinatal births in four cities located in Hunan province, China, during the period 2014 to 2016. Exposure to SO2, NO2, and PM10 in each pregnant woman in the first 3 months before pregnancy, and in the first and third trimester was assessed. The risk of birth defects related to SO2 in the first 3 months before pregnancy was between 1.191 and 1.566. In the first trimester stage the risk was between 1.104 and 1.348. The risk of birth defects related to NO2 before pregnancy was 1.285 (95%CI: 1.180-1.399), in the first trimester stage the risk was between 1.280 (95%CI: 1.197-1.368) and 1.380 (95%CI: 1.293-1.473). In the third month before delivery the risk was 1.484 (95%CI: 1.366-1.613). The risk of birth defects related to PM10 in the first month of pregnancy was 1.098 (95%CI: 1.057-1.140), and in the third month before delivery the risk was 1.296 (95%CI: 1.222-1.375). SO2 had a greater effect on the prophase of pregnancy, while NO2 and PM10 had an effect in the late third trimester.

Indexed as

AdultAir PollutionCase-Control StudiesChinaCitiesCongenital AbnormalitiesEnvironmental MonitoringFemaleHumansInfant, NewbornMaleMaternal AgeMaternal ExposureNitrogen DioxideParticulate MatterPregnancyNitrogen DioxideParticulate MatterSulfur Dioxide

Identifiers

PMID30681619
PMCPMC6358400
OpenAlexW2913403767

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.