Evidence map›Paper›PMID 32590426›Full record

ArticleJournal of occupational and environmental medicine2020

Decreased Pulmonary Function Over 5 Years in US Firefighters.

Kevin C Mathias, Elliot Graham, Donald Stewart, Denise L Smith

Abstract read
In one paragraph

Article in Journal of occupational and environmental medicine, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing 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

12 citing papers in PubMed.

  1. Article
  2. Respiratory injuries among California career firefighters, 2000-2019.Annals of the American Thoracic Society · 2026
    Article
  3. Review
  4. Review
  5. Perceptions of lung function surveillance in urban firefighters.Annals of work exposures and health · 2023
    Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Review
  12. Mental Health of Canadian Firefighters: The Impact of Sleep.International journal of environmental research and public health · 2021
    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

4 authors.

Kevin C MathiasDepartment of Health and Human Physiological Sciences, Skidmore College, Saratoga Springs, New York (Dr Mathias, Mr Graham, Dr Smith); Public Safety Occupational Health Center, Fairfax, Virginia (Dr Stewart); and Illinois Fire Service Institute, University of Illinois at Urbana-Champaign, Champaign, Illinois (Dr Smith).
Elliot Graham
Donald Stewart
Denise L Smith

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo examine changes in pulmonary function over a 5-year period in US firefighters.

methodsSpirometry values from occupational medical examinations separated by 5 years (2009 to 2016) were examined from 662 career firefighters in Virginia. Predicted values and expected 5-year changes in one-second forced expiratory volume (FEV1), forced vital capacity (FVC), and FEV1/FVC were estimated using reference equations generated from the Third National Health and Nutrition Examination Survey (NHANES III) data. Paired t-tests were used to identify significant changes over time and between the observed and expected changes.

resultsFEV1 and FVC (percentage of predicted) decreased (P < 0.001) from 100.9 ± 0.6% to 92.3 ± 0.5% and 99.0 ± 0.6% to 91.9 ± 0.5%, respectfully. The observed decreases in FEV1, FVC, and FEV1/FVC were two to four times greater (P < 0.001) than the expected decrease over 5 years.

conclusionIncreased efforts are needed to ensure respiratory protection for US firefighters to minimize their risk of pulmonary damage.

Indexed as

FirefightersForced Expiratory VolumeHumansLongitudinal StudiesLungNutrition SurveysSpirometryVirginiaVital Capacity

Identifiers

PMID32590426
PMCPMC7537734

What OpenQuestion holds

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LicenceCC BY-NC-ND
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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.