Evidence map›Paper›PMID 39697317›Full record

ArticleSafety and health at work2024

Asthma Among Manitoba Workers: Results from the Manitoba Occupational Disease Surveillance System.

Elizabeth Rydz, Randy Walld, Mieke W Koehoorn, Christopher B McLeod, Paul A Demers, Cheryl E Peters, Allen Kraut

Abstract read
In one paragraph

Article in Safety and health at work, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

7 authors.

Elizabeth RydzSchool of Population and Public Health, University of British Columbia, Vancouver, BC, Canada.
Randy WalldManitoba Centre for Health Policy, University of Manitoba, Winnipeg, MB, Canada.
Mieke W KoehoornSchool of Population and Public Health, University of British Columbia, Vancouver, BC, Canada.
Christopher B McLeodSchool of Population and Public Health, University of British Columbia, Vancouver, BC, Canada.
Paul A DemersOccupational Cancer Research Centre, Ontario Health, Toronto, ON, Canada.
Cheryl E PetersSchool of Population and Public Health, University of British Columbia, Vancouver, BC, Canada.
Allen KrautDepartment of Internal Medicine, Faculty of Medicine, University of Manitoba, Winnipeg, MB, Canada.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: This study characterized the risk of new-onset asthma among workers in Manitoba, Canada. Methods: Accepted time loss claims from the Workers' Compensation Board of Manitoba from 2006 to 2019, containing workers' occupations and industries, were linked with administrative health data from 1996 to 2020. After restricting the cohort to the first claim per person in an occupation and applying age and coverage exclusions, the cohort comprised 142,588 person-occupation combinations. Asthma cases were identified if workers had at least two medical records for asthma (International Classification of Diseases, Ninth Revision, 493) within a 12-month period, within the 2 years before 3 years after cohort entry. New-onset asthma was identified using a 3-year washout period. Asthma hazard ratios by occupation and industry were estimated using Cox proportional hazard models, adjusted for age, and stratified by sex. Results: Increased asthma risk was observed among workers with known asthmagen exposure, including male veterinary and animal health technologists and technicians (hazard ratio 3.97, 95% CI 1.78-8.86), male fish processing workers (3.40, 1.53-7.57), and male machining tool operators (2.91, 1.72-4.92). Increases were also observed for occupations with unknown or suspected allergens, including gas station attendants, drivers, mail/postal and related workers, public works and maintenance laborers, mine laborers and crane operators, and some indoor worker groups. Decreased risks were observed among nurses and residential and commercial installer and servicers. Conclusion: This database linkage study successfully identified occupations and industries with known sensitizing agents or irritants, and several occupation and industries not typically associated with work-related asthma, warranting further investigation.

Indexed as

CohortCompensation claimsOccupational asthmaSurveillance

Identifiers

PMID39697317
PMCPMC11650797

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Registered trials

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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.