Evidence map›Paper›PMID 25405599›Full record

SynthesisInternational journal of environmental research and public health2014

The global contribution of outdoor air pollution to the incidence, prevalence, mortality and hospital admission for chronic obstructive pulmonary disease: a systematic review and meta-analysis.

Qingkun Song, David C Christiani, XiaorongWang, Jun Ren

Abstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in International journal of environmental research and public health, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 73 papers, 8 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
73citing papers in PubMed, 8 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

73 citing papers in PubMed, 8 syntheses or guidelines pooled it.

  1. Pooled it
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  3. Pooled it
  4. Pooled it
  5. Pooled it
  6. Pooled it
  7. Pooled it
  8. Pooled it
  9. Biomarkers Predictive of Exacerbations in the SPIROMICS and COPDGene Cohorts.American journal of respiratory and critical care medicine · 2017
    Trial
  10. Article
  11. Article
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  15. Ambient air pollution and mortality: The role of socioeconomic conditions.Environmental epidemiology (Philadelphia, Pa.) · 2024
    Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Air quality in a hospital dental department.Journal of dental sciences · 2022
    Article

13 more citing papers are in PubMed but not listed here.

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

4 authors.

Qingkun SongBeijing Key Laboratory of Cancer Therapeutic Vaccine, Capital Medical University Cancer Center, Beijing Shijitan Hospital, Tie Yi Road 10, Haidian District, Beijing 100038, China. songqingkun@gmail.com.
David C ChristianiDepartment of Environmental Health, Harvard School of Public Health, Boston, MA 02115, USA. dchris@hsph.harvard.edu.
XiaorongWangThe Chinese University of Hong Kong, Hong Kong 999077, China. xrwang@cuhk.edu.hk.
Jun RenBeijing Key Laboratory of Cancer Therapeutic Vaccine, Capital Medical University Cancer Center, Beijing Shijitan Hospital, Tie Yi Road 10, Haidian District, Beijing 100038, China. renjun9688@yahoo.com.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveThis study aimed to investigate the quantitative effects of outdoor air pollution, represented by 10 µg/m(3) increment of PM10, on chronic obstructive pulmonary disease in China, United States and European Union through systematic review and meta-analysis.

methodsPublications in English and Chinese from PubMed and EMBASE were selected. The Cochrane Review Handbook of Generic Inverse Variance was used to synthesize the pooled effects on incidence, prevalence, mortality and hospital admission.

resultsOutdoor air pollution contributed to higher incidence and prevalence of COPD. Short-term exposure was associated with COPD mortality increased by 6%, 1% and 1% in the European Union, the United States and China, respectively (p < 0.05). Chronic PM exposure produced a 10% increase in mortality. In a short-term exposure to 10 µg/m(3) PM10 increment COPD mortality was elevated by 1% in China (p < 0.05) and hospital admission enrollment was increased by 1% in China, 2% in United States and 1% in European Union (p < 0.05).

conclusionsOutdoor air pollution contributes to the increasing burdens of COPD.10 µg/m(3) increase of PM10 produced significant condition of COPD death and exacerbation in China, United States and European Union. Controlling air pollution will have substantial benefit to COPD morbidity and mortality.

Indexed as

Environmental ExposureHospitalizationAir PollutantsAir PollutionChinaEuropeEuropean UnionIncidencePrevalencePulmonary Disease, Chronic ObstructiveUnited StatesAir Pollutants

Identifiers

PMID25405599
PMCPMC4245645

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.