Evidence map›Paper›PMID 23118887›Full record

ArticlePloS one2012

Non-specific abdominal pain and air pollution: a novel association.

Gilaad G Kaplan, Mieczyslaw Szyszkowicz, Jakub Fichna, Brian H Rowe, Eugeniusz Porada, Renaud Vincent, Karen Madsen, Subrata Ghosh, Martin Storr

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed
3.5field-weighted citation impact, top 8% 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

37 citing papers in PubMed, 66 citations in OpenAlex.

  1. Trial
  2. Association of Air Pollution and Socioeconomic Deprivation with Depression and Pain.International journal of environmental research and public health · 2026
    Article
  3. Article
  4. Respiratory exposure to agricultural dust extract promotes increased intestinalAmerican journal of physiology. Gastrointestinal and liver physiology · 2024
    Article
  5. Review
  6. Review
  7. Article
  8. Article
  9. Deleterious Effect of Air Pollution on Human Microbial Community and Bacterial Flora: A Short Review.International journal of environmental research and public health · 2022
    Review
  10. Article
  11. Article
  12. Article
  13. Association between exposure to air pollutants and the risk of inflammatory bowel diseases visits.Environmental science and pollution research international · 2022
    Article
  14. Cold Climate Impact on Air-Pollution-Related Health Outcomes: A Scoping Review.International journal of environmental research and public health · 2022
    Article
  15. Article
  16. Review
  17. Article
  18. Article
  19. Challenges in IBD Research: Environmental Triggers.Inflammatory bowel diseases · 2019
    Review
  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

9 authors at 4 institutions in 3 countries.

Gilaad G KaplanDivision of Gastroenterology, University of Calgary, Calgary, Alberta, Canada.
Mieczyslaw Szyszkowicz
Jakub Fichna
Brian H Rowe
Eugeniusz Porada
Renaud Vincent
Karen Madsen
Subrata Ghosh
Martin Storr
Health Canada · CAUniversity of Calgary · CAUniversity of Alberta · CAMedical University of Lodz · PL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundWe studied whether short-term exposure to air pollution was associated with non-specific abdominal pain in epidemiologic and animal studies.

methodsPatients visiting the emergency department with non-specific abdominal pain were identified in Edmonton (1992 to 2002, n = 95,173) and Montreal (1997 to 2002, n = 25,852). We calculated the daily concentrations for ozone (O(3)), nitrogen dioxide (NO(2)), sulfur dioxide (SO(2)), carbon monoxide (CO), and particles <10 (PM(10)) or <2.5 (PM(2.5)) µm. A case crossover study design was used to estimate the odds ratio (OR) and 95% confidence interval (CI) associated with an increase in the interquartile range of the air pollutants. We investigated differential effects by age and sex. Mice were gavaged with urban particle extracts. In animal models, colonic motility was tested, and visceral abdominal pain was measured using a writhing test, and behavioral response to oil of mustard and neostigmine. Motility and pain was measured acutely (1.5 hours after gavage) and chronically (7-days and 21-days after gavage).

resultsEmergency department visits for non-specific abdominal pain were primarily by women between the ages of 15-24 years. Individuals aged 15 to 24 years were at increased risk of non-specific abdominal pain in Edmonton (same day CO: OR = 1.04, 95% CI = 1.02-1.06; and NO(2): OR = 1.06, 95% CI = 1.03-1.09). The risk of air pollution among 15-24 year olds in Montreal was significantly positive (same day CO: OR = 1.11, 95% CI = 1.05-1.17; NO(2): OR = 1.09, 95% CI = 1.01-1.16; SO(2): OR = 1.17, 95% CI = 1.10-1.25; PM(2.5): OR = 1.09, 95% CI = 1.04-1.15). Abdominal pain was increased by an acute gavage of pollution extract but not to chronic exposure to pollutants. Colonic transit was delayed following chronic but not acute exposure with the pollutants.

conclusionsEpidemiological and animal data suggest that short-term exposure to air pollution may trigger non-specific abdominal pain in young individuals.

Indexed as

Abdominal PainAir PollutionAdolescentAdultAge FactorsAir PollutantsAnimalsCarbon MonoxideFemaleHumansMaleMiceMiddle AgedMuscle RelaxationMuscle, SmoothNitrogen DioxideAir PollutantsCarbon MonoxideNitrogen DioxideOzoneParticulate MatterSulfur Dioxide

Identifiers

PMID23118887
PMCPMC3485276
OpenAlexW2017859988

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.