Evidence map›Paper›PMID 32510907›Full record

ArticleJournal of occupational and environmental medicine2020

Spirometric Abnormalities and Lung Function Decline in Current and Former Microwave Popcorn and Current Flavoring Manufacturing Workers.

Jean M Cox-Ganser, Sandra K White, Kathleen B Fedan, Rachel L Bailey, Ethan Fechter-Leggett, Kristin J Cummings

Registry-linked trialAbstract 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. It is linked to trial NCT07383896 (Chronic Obstructive Pulmonary Disease and Asthma in Workers at Navanakorn Industrial Zone, Thailand), which is not on this map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing 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.

NCT07383896 recruitingnot on this mapstarted 2025, after this paper: background citation

Chronic Obstructive Pulmonary Disease and Asthma in Workers at Navanakorn Industrial Zone, Thailand

TypeobservationalSponsorThammasat UniversityRan2025 to 2026Enrolled310ConditionsAsthma, COPDArmsPulmonary function test
3 · Its place in the literature

Who cites it

4 citing papers in PubMed.

  1. Trial
  2. Review
  3. Article
  4. 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

6 authors.

Jean M Cox-GanserNational Institute for Occupational Safety and Health, Respiratory Health Division, Morgantown, West Virginia (Dr Cox-Ganser, Dr White, Fedan, Bailey, Fechter-Leggett, Dr Cummings), Department of Pathology, University of Utah School of Medicine, Salt Lake City, Utah (Dr White), and Occupational Health Branch, California Department of Public Health, Richmond, California (Dr Cummings).
Sandra K White
Kathleen B Fedan
Rachel L Bailey
Ethan Fechter-Leggett
Kristin J Cummings

Funding

Intramural CDC HHS CC999999
6 · The paper itself

Abstract

objectiveThe aim of this study was to compare spirometry results in microwave popcorn and flavoring manufacturing workers.

methodsWe used NIOSH data on current and former microwave popcorn workers (MPWs) and surveillance data on flavoring manufacturing workers (FMWs).

resultsFormer MPW had higher prevalence of mixed and high severity abnormalities, some had excessive lung function drops. Current MPW had lowest occurrence of excessive lung function drops. FMW with excessive drops and spirometric abnormalities at last test had developed a restrictive pattern. Spirometric abnormalities and excessive drops were associated with work-related factors.

conclusionThere was evidence of a healthy worker survivor effect in MPW. Importantly, removal from exposure did not always stabilize lung function decline indicating a need for continued monitoring. The development of a restrictive pattern should raise the level of suspicion for possible work-related disease in flavoring-exposed workers.

Indexed as

Food IndustryOccupational DiseasesOccupational ExposureFlavoring AgentsHumansLungSpirometryFlavoring Agents

Identifiers

PMID32510907
PMCPMC9516557

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Registered trials

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.