Evidence map›Paper›PMID 32883739›Full record

ArticleBMJ open2020

Sarcoidosis and silica dust exposure among men in Sweden: a case-control study.

Pål Graff, Johanna Larsson, Ing-Liss Bryngelsson, Pernilla Wiebert, Per Vihlborg

Open access · goldAbstract read
In one paragraph

Article in BMJ open, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 2 pooled it
2.5field-weighted citation impact, top 10% 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

21 citing papers in PubMed, 2 syntheses or guidelines pooled it, 43 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Particles exposures and sarcoidosis.Sarcoidosis, vasculitis, and diffuse lung diseases : official journal of WASOG · 2025
    Article
  4. Article
  5. Review
  6. Review
  7. Review
  8. Sarcoidosis: a general overview.Advances in rheumatology (London, England) · 2024
    Review
  9. Article
  10. Review
  11. Article
  12. Epidemiology and Risk Factors for Rheumatoid Arthritis Development.Mediterranean journal of rheumatology · 2023
    Review
  13. Review
  14. Understanding the pathogenesis of occupational coal and silica dust-associated lung disease.European respiratory review : an official journal of the European Respiratory Society · 2022
    Review
  15. Article
  16. Article
  17. Sarcoidosis in Northern Ontario hard-rock miners: A case series.American journal of industrial medicine · 2022
    Article
  18. Review
  19. Article
  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

5 authors at 3 institutions in 2 countries.

Pål GraffDepartment of Chemical and Biological Work Environment, STAMI, Oslo, Norway pal.graff@stami.no.ORCID 0000-0003-4928-617X
Johanna LarssonDepartment of Occupational and Environmental Medicine, Faculty of Medicine and Health, Örebro University, Örebro, Sweden.
Ing-Liss BryngelssonDepartment of Occupational and Environmental Medicine, Faculty of Medicine and Health, Örebro University, Örebro, Sweden.
Pernilla WiebertInstitute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden.
Per VihlborgDepartment of Occupational and Environmental Medicine, Faculty of Medicine and Health, Örebro University, Örebro, Sweden.
Örebro University · SEKarolinska Institutet · SENational Institute of Occupational Health · NO

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo determine whether occupational exposure to silica dust is associated with an increased risk of developing sarcoidosis.

designCase-control study of all individuals between 20 and 65 years of age diagnosed with sarcoidosis (D86) in Sweden between 2007 and 2016. Controls were matched to cases (2:1) based on age, sex and county at the time of diagnosis. A Job Exposure Matrix was used to estimate the occupational silica exposure of all cases and controls.

settingMedical and occupational data from the National Outpatient Register were used to implement a case-control analysis, while the two controls used for each case were selected from the National Register of the Total Population. Information about occupation and time of employment were collected from the Swedish Occupational Register.

participantsAll men and women aged 20-65 years old who were diagnosed sarcoidosis (D86) from 2007 to 2016 were included and assigned two controls. MAIN OUTCOMES: Silica dust exposure correlates with an increased risk of developing sarcoidosis in men.

resultsThe prevalence of silica exposure at work was statistically significantly higher among male cases than controls (OR 1.27, 95% CI 1.13 to 1.43). For men of an age of 35 years or younger the correlation seems to be stronger (OR 1.48, 95% CI 1.1 to 1.87) than in older men (OR 1.21, 95% CI 1.05 to 1.39). For men older than 35 with exposure to silica the prevalence of sarcoidosis increased with the exposure time, with an OR of 1.44 (95% CI 1.04 to 2.00) for exposure of more than 10 years.

conclusionsOccupational exposure to silica dust seems to increase the risk of sarcoidosis among men between 20 and 65 years of age. The risk is higher among exposed men 35 years or younger and older men with longer exposure (>6 years).

Indexed as

Occupational DiseasesOccupational ExposureSarcoidosisAdultAgedCase-Control StudiesDustFemaleHumansMaleMiddle AgedRisk FactorsSilicon DioxideSwedenYoung AdultDustSilicon Dioxideepidemiologyinterstitial lung diseaseoccupational & industrial medicine

Identifiers

PMID32883739
PMCPMC7473614
OpenAlexW3083475744

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.