Evidence map›Paper›PMID 30464013›Full record

ArticleThe European respiratory journal2019

High COPD prevalence at high altitude: does household air pollution play a role?

Evelyn A Brakema, Aizhamal Tabyshova, Marise J Kasteleyn, Eveline Molendijk, Rianne M J J van der Kleij, Job F M van Boven, Berik Emilov, Meerim Akmatalieva, Maamed Mademilov, Mattijs E Numans and 3 more

Abstract read
In one paragraph

Article in The European respiratory journal, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed
–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

39 citing papers in PubMed.

  1. Trial
  2. Personal fine particulate matter (PMBMC public health · 2026
    Article
  3. Article
  4. Observational
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

13 authors.

Evelyn A BrakemaDept of Public Health and Primary Care, Leiden University Medical Center, Leiden, The Netherlands.ORCID 0000-0002-7376-4648
Aizhamal TabyshovaPulmonary Dept, National Center of Cardiology and Internal Medicine, Bishkek, Kyrgyzstan.
Marise J KasteleynDept of Public Health and Primary Care, Leiden University Medical Center, Leiden, The Netherlands.
Eveline MolendijkDept of Public Health and Primary Care, Leiden University Medical Center, Leiden, The Netherlands.
Rianne M J J van der KleijDept of Public Health and Primary Care, Leiden University Medical Center, Leiden, The Netherlands.
Job F M van BovenDept of General Practice and Elderly Care Medicine, Groningen Research Institute for Asthma and COPD (GRIAC), University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.ORCID 0000-0003-2368-2262
Berik EmilovPulmonary Dept, National Center of Cardiology and Internal Medicine, Bishkek, Kyrgyzstan.
Meerim AkmatalievaPulmonary Dept, National Center of Cardiology and Internal Medicine, Bishkek, Kyrgyzstan.
Maamed MademilovPulmonary Dept, National Center of Cardiology and Internal Medicine, Bishkek, Kyrgyzstan.
Mattijs E NumansDept of Public Health and Primary Care, Leiden University Medical Center, Leiden, The Netherlands.
Sian WilliamsInternational Primary Care Respiratory Group (IPCRG), London, UK.
Talant SooronbaevPulmonary Dept, National Center of Cardiology and Internal Medicine, Bishkek, Kyrgyzstan.
Niels H ChavannesDept of Public Health and Primary Care, Leiden University Medical Center, Leiden, The Netherlands.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Studies comparing chronic obstructive pulmonary disease (COPD) prevalence across altitudes report conflicting results. However, household air pollution (HAP), a major COPD risk factor, was mostly not accounted for in previous analyses and never objectively measured. We aimed to compare the prevalence of COPD and its risk factors between low-resource highlands and lowlands, with a particular focus on objectively measured HAP.We conducted a population-based, observational study in a highland (∼2050 m above sea level) and a lowland (∼750 m above sea level) setting in rural Kyrgyzstan. We performed spirometry in randomly selected households, measured indoor particulate matter with an aerodynamic diameter <2.5 µm (PM

Indexed as

Air Pollution, IndoorAltitudeSpirometryAdultAir PollutantsAir PollutionCross-Sectional StudiesFemaleHumansKyrgyzstanMaleMiddle AgedMultivariate AnalysisParticulate MatterPrevalencePulmonary Disease, Chronic ObstructiveAir PollutantsParticulate Matter

Identifiers

PMID30464013
PMCPMC6428658

What OpenQuestion holds

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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.