Evidence map›Paper›PMID 31848232›Full record

ArticleOccupational and environmental medicine2020

A follow-up study of occupational styrene exposure and risk of autoimmune rheumatic diseases.

Signe Hjuler Boudigaard, Zara Ann Stokholm, Jesper Medom Vestergaard, Mette Skovgaard Mohr, Klaus Søndergaard, Kjell Torén, Vivi Schlünssen, Henrik A Kolstad

Abstract read
In one paragraph

Article in 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 6 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed, 1 pooled it
–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

6 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  3. Review
  4. Article
  5. Review
  6. Review
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

8 authors.

Signe Hjuler BoudigaardDepartment of Occupational Medicine, Danish Ramazzini Centre, Aarhus University Hospital, Aarhus, Denmark sigkrt@rm.dk.ORCID 0000-0003-0740-0878
Zara Ann StokholmDepartment of Occupational Medicine, Danish Ramazzini Centre, Aarhus University Hospital, Aarhus, Denmark.ORCID 0000-0001-6045-7190
Jesper Medom VestergaardDepartment of Occupational Medicine, Danish Ramazzini Centre, Aarhus University Hospital, Aarhus, Denmark.ORCID 0000-0002-7435-6566
Mette Skovgaard MohrDepartment of Occupational Medicine, Danish Ramazzini Centre, Aarhus University Hospital, Aarhus, Denmark.
Klaus SøndergaardDepartment of Rheumathology, Aarhus University Hospital, Aarhus, Denmark.ORCID 0000-0002-8357-2789
Kjell TorénOccupational and Environmental Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.ORCID 0000-0001-8509-7603
Vivi SchlünssenDepartment of Public Health, Danish Ramazzini Centre, Aarhus Universitet, Aarhus, Denmark.ORCID 0000-0003-4915-1734
Henrik A KolstadDepartment of Occupational Medicine, Danish Ramazzini Centre, Aarhus University Hospital, Aarhus, Denmark.ORCID 0000-0002-6535-4323

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesIncreased risk has been suggested for autoimmune rheumatic diseases following solvent exposure. The evidence for specific solvents is limited, and little is known about exposure-response relations. Styrene is an aromatic, organic solvent and the objective of this study was to analyse the association between occupational styrene exposure and autoimmune rheumatic diseases in men and women.

methodsWe followed 72 212 styrene-exposed workers of the Danish reinforced plastics industry from 1979 to 2012. We modelled full work history of styrene exposure from employment history, survey data and historical styrene exposure measurements. We identified cases in the national patient registry and investigated gender-specific exposure-response relations by cumulative styrene exposure for different exposure time windows adjusting for age, calendar year and educational level.

resultsDuring 1 515 126 person-years of follow-up, we identified 718 cases of an autoimmune rheumatic disease, of which 73% were rheumatoid arthritis. When adjusting for potential confounders and comparing the highest with the lowest styrene exposure tertile, we observed a statistically non-significantly increased risk of systemic sclerosis among women (incidence rate ratio (IRR)=2.50; 95% CI 0.50 to 12.50) and men (IRR=1.86; 95 % CI 0.50 to 7.00), based on 9 and 22 cases, respectively. Results were inconsistent for the other autoimmune rheumatic diseases examined.

conclusionThis study suggests an association between occupational styrene exposure and systemic sclerosis in men as well as in women but based on few cases. This is a new finding and has to be replicated before conclusions can be drawn.

Indexed as

AdultAgedArthritis, RheumatoidAutoimmune DiseasesDenmarkFemaleHumansMaleManufacturing IndustryMiddle AgedOccupational DiseasesOccupational ExposurePlasticsRegistriesRheumatic DiseasesScleroderma, SystemicPlasticsSolventsStyreneautoimmune diseasesconnective tissue diseasesoccupational exposuresolventssystemic scleroderma

Identifiers

PMID31848232
PMCPMC7029229

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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.