Evidence map›Paper›PMID 25553395›Full record

ArticleEnvironment international2015

Ambient air pollutant PM10 and risk of preterm birth in Lanzhou, China.

Nan Zhao, Jie Qiu, Yaqun Zhang, Xiaochun He, Min Zhou, Min Li, Xiaoying Xu, Hongmei Cui, Ling Lv, Xiaojuan Lin and 30 more

Abstract read
In one paragraph

Article in Environment international, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
43citing papers in PubMed, 5 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

43 citing papers in PubMed, 5 syntheses or guidelines pooled it.

  1. Pooled it
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  16. Exposure to Ambient Air Pollutant PMBioMed research international · 2022
    Article
  17. Article
  18. Article
  19. Long-term impact of ambient air pollution on preterm birth in Xuzhou, China: a time series study.Environmental science and pollution research international · 2021
    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

40 authors.

Nan ZhaoYale University, School of Public Health, New Haven, CT, USA.
Jie QiuGansu Provincial Maternity and Child Care Hospital, Lanzhou, Gansu, China.
Yaqun ZhangGansu Provincial Design and Research Institute of Environmental Science, Lanzhou, Gansu, China.
Xiaochun HeGansu Provincial Maternity and Child Care Hospital, Lanzhou, Gansu, China.
Min ZhouGansu Provincial Maternity and Child Care Hospital, Lanzhou, Gansu, China.
Min LiGansu Provincial Environmental Monitoring Central Station, Lanzhou, Gansu, China.
Xiaoying XuGansu Provincial Maternity and Child Care Hospital, Lanzhou, Gansu, China.
Hongmei CuiGansu Provincial Maternity and Child Care Hospital, Lanzhou, Gansu, China.
Ling LvGansu Provincial Maternity and Child Care Hospital, Lanzhou, Gansu, China.
Xiaojuan LinGansu Provincial Maternity and Child Care Hospital, Lanzhou, Gansu, China.
Chong ZhangGansu Provincial Maternity and Child Care Hospital, Lanzhou, Gansu, China.
Honghong ZhangGansu Provincial Maternity and Child Care Hospital, Lanzhou, Gansu, China.
Ruifeng XuGansu Provincial Maternity and Child Care Hospital, Lanzhou, Gansu, China.
Daling ZhuGansu Provincial Maternity and Child Care Hospital, Lanzhou, Gansu, China.
Ru LinGansu Provincial Maternity and Child Care Hospital, Lanzhou, Gansu, China.
Tingting YaoGansu Provincial Maternity and Child Care Hospital, Lanzhou, Gansu, China.
Jie SuGansu Provincial Maternity and Child Care Hospital, Lanzhou, Gansu, China.
Yun DangGansu Provincial Maternity and Child Care Hospital, Lanzhou, Gansu, China.
Xudong HanGansu Provincial Maternity and Child Care Hospital, Lanzhou, Gansu, China.
Hanru ZhangGansu Provincial Maternity and Child Care Hospital, Lanzhou, Gansu, China.
Haiya BaiGansu Provincial Maternity and Child Care Hospital, Lanzhou, Gansu, China.
Ya ChenGansu Provincial Maternity and Child Care Hospital, Lanzhou, Gansu, China.
Zhongfeng TangGansu Provincial Maternity and Child Care Hospital, Lanzhou, Gansu, China.
Wendi WangGansu Provincial Maternity and Child Care Hospital, Lanzhou, Gansu, China.
Yueyuan WangGansu Provincial Maternity and Child Care Hospital, Lanzhou, Gansu, China.
Xiaohui LiuGansu Provincial Maternity and Child Care Hospital, Lanzhou, Gansu, China.
Bin MaGansu Provincial Maternity and Child Care Hospital, Lanzhou, Gansu, China.
Sufen LiuGansu Provincial Maternity and Child Care Hospital, Lanzhou, Gansu, China.
Weitao QiuGansu Provincial Maternity and Child Care Hospital, Lanzhou, Gansu, China.
Huang HuangYale University, School of Public Health, New Haven, CT, USA.
Jiaxin LiangYale University, School of Public Health, New Haven, CT, USA.
Qiong ChenHenan Province Cancer Hospital, Office for Cancer Control and Prevention, Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou, Henan, China.
Min JiangSichuan University School of Public Health, Chengdu, Sichuan, China.
Shuangge MaYale University, School of Public Health, New Haven, CT, USA.
Lan JinYale University, School of Forestry and Environmental Studies, New Haven, CT, USA.
Theodore HolfordYale University, School of Public Health, New Haven, CT, USA.
Brian LeadererYale University, School of Public Health, New Haven, CT, USA.
Michelle L BellYale University, School of Forestry and Environmental Studies, New Haven, CT, USA.
Qing LiuGansu Provincial Maternity and Child Care Hospital, Lanzhou, Gansu, China. Electronic address: 2305470816@qq.com.
Yawei ZhangYale University, School of Public Health, New Haven, CT, USA. Electronic address: yawei.zhang@yale.edu.

Funding

Effect of Air Pollution and Traffic on Birth OutcomesR01ES016317 · NIEHS · YALE UNIVERSITY · PI BELANGER, KATHLEEN, BELL, MICHELLE L · 2008 to 2012
$2.9M
Effects of Fine Particle Composition on Birth OutcomesR01ES019587 · NIEHS · YALE UNIVERSITY · PI BELL, MICHELLE L · 2011 to 2015
$2.6M
Air pollution and fetal growth in ChinaK02HD070324 · NICHD · YALE UNIVERSITY · PI ZHANG, YAWEI · 2011 to 2015
$582k
NICHD NIH HHS K02 HD070324NICHD NIH HHS K02HD70324NIEHS NIH HHS R01 ES016317NIEHS NIH HHS R01ES016317NIEHS NIH HHS R01 ES019587NIEHS NIH HHS R01ES019587
6 · The paper itself

Abstract

importanceExposure to ambient particulate matter during pregnancy has been suggested as a risk factor for preterm birth. However results from limited epidemiologic studies have been inconclusive. Very few studies have been conducted in areas with high air pollution levels.

objectiveWe investigated the hypothesis that high level exposure to particulate matter with aerodynamic diameter no larger than 10μm (PM10) during pregnancy increases the risk of preterm birth.

methodsA birth cohort study was carried out between 2010 and 2012 in Lanzhou, China, including 8969 singleton live births with available information on daily PM10 levels from four monitoring stations, individual exposures during pregnancy were calculated using inverse-distance weighting based on both home and work addresses. Unconditional logistic regression modeling was used to examine the associations between PM10 exposure and risk of preterm birth and its clinical subtypes.

resultsIncreased risk of very preterm birth was associated with exposure to PM10 during the last two months of pregnancy (OR, 1.07; 95%CI, 1.02-1.13 per 10μg/m(3) increase for last four weeks before delivery; 1.09; 1.02-1.15 for last six weeks before delivery; 1.10; 1.03-1.17 for last eight weeks before delivery). Compared to the U.S. National Ambient Air Quality Standard (150μg/m(3)), higher exposure level (≥150μg/m(3)) of PM10 during entire pregnancy was associated with an increased risk of preterm birth (1.48; 1.22-1.81) and the association was higher for medically indicated preterm birth (1.80, 1.24-2.62) during entire pregnancy and for very preterm during last 6weeks before delivery (2.03, 1.11-3.72). CONCLUSIONS AND RELEVANCE: Our study supports the hypothesis that exposure to high levels of ambient PM10 increases the risk of preterm birth. Our study also suggests that the risk may vary by clinical subtypes of preterm birth and exposure time windows. Our findings are relevant for health policy makers from China and other regions with high levels of air pollution to facilitate the efforts of reducing air pollution level in order to protect public health.

Indexed as

ChinaCohort StudiesEnvironmental ExposureFemaleHumansInfant, NewbornLogistic ModelsMaleParticle SizeParticulate MatterPregnancyPremature BirthPublic HealthRisk FactorsTime FactorsParticulate MatterAir pollutionBirth cohortChinaEpidemiologyPM(10)Preterm birth

Identifiers

PMID25553395
PMCPMC4526148

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