Evidence map›Paper›PMID 33573606›Full record

ArticleEnvironmental health and preventive medicine2021

Outdoor air pollution and diminished ovarian reserve among infertile Korean women.

Hannah Kim, Seung-Ah Choe, Ok-Jin Kim, Sun-Young Kim, Seulgi Kim, Changmin Im, You Shin Kim, Tae Ki Yoon

Open access · goldAbstract read
In one paragraph

Article in Environmental health and preventive medicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 2 pooled it
3.6field-weighted citation impact, top 7% 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

17 citing papers in PubMed, 2 syntheses or guidelines pooled it, 48 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Ambient PMEnvironmental epidemiology (Philadelphia, Pa.) · 2026
    Article
  4. Article
  5. Article
  6. Article
  7. Review
  8. Article
  9. The effect of chronic inflammation on female fertility.Reproduction (Cambridge, England) · 2025
    Review
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  11. Article
  12. Article
  13. Article
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  15. Article
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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

8 authors at 4 institutions in 2 countries.

Hannah KimDepartment of Obstetrics and Gynecology, CHA Fertility Center Seoul Station, CHA University School of Medicine, Seoul, 04637, Korea.
Seung-Ah ChoeDepartment of Obstetrics and Gynecology, CHA Fertility Center Seoul Station, CHA University School of Medicine, Seoul, 04637, Korea. seungah@korea.ac.kr.ORCID http://orcid.org/0000-0001-6270-5020
Ok-Jin KimDepartment of Cancer Control and Population Health, Graduate School of Cancer Science and Policy, National Cancer Center, Goyang-si, Gyeonggi-do, 10408, Korea.
Sun-Young KimDepartment of Cancer Control and Population Health, Graduate School of Cancer Science and Policy, National Cancer Center, Goyang-si, Gyeonggi-do, 10408, Korea.
Seulgi KimDepartment of Public Health Science, Graduate School of Public Health, Seoul National University, Seoul, 08826, Korea.
Changmin ImDepartment of Geography, Korea University, Seoul, 02841, South Korea.
You Shin KimDepartment of Obstetrics and Gynecology, CHA Fertility Center Seoul Station, CHA University School of Medicine, Seoul, 04637, Korea.
Tae Ki YoonDepartment of Obstetrics and Gynecology, CHA Fertility Center Seoul Station, CHA University School of Medicine, Seoul, 04637, Korea.
CHA University · KRKorea University · KRSeoul National University · KRNational Cancer Center · KR

Funding

National Research Foundation of Korea 2016R1D1A1B03933410National Research Foundation of Korea 2018R1D1A1B07048821
6 · The paper itself

Abstract

backgroundMounting evidence implicates an association between ambient air pollution and impaired reproductive potential of human. Our study aimed to assess the association between air pollution and ovarian reserve in young, infertile women.

methodsOur study included 2276 Korean women who attended a single fertility center in 2016-2018. Women's exposure to air pollution was assessed using concentrations of particulate matter (PM

resultsThe mean age was 36.6 ± 4.2 years and AMH level was 3.3 ± 3.1 ng/mL in the study population. Average AMH ratio was 0.8 ± 0.7 and low AMH was observed in 10.3% of women (n=235). The average concentration of six air pollutants was not different between the normal ovarian reserve and low AMH groups for all averaging periods. In multivariable models, an interquartile range (IQR)-increase in 1 month-average PM

conclusionsIn a cohort of infertile Korean women, there was a suggestive evidence of the negative association between ambient PM concentration and ovarian reserve, highlighting the potential adverse impact of air pollution on women's fertility.

Indexed as

AdultAir PollutantsAir PollutionEnvironmental ExposureFemaleHumansInfertility, FemaleOvarian ReserveRepublic of KoreaAir PollutantsAir pollutionAnti-Müllerian hormoneFertilityOvarian reserve

Identifiers

PMID33573606
PMCPMC7879617
OpenAlexW3127705666

What OpenQuestion holds

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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.