Evidence map›Paper›PMID 25632885›Full record

ArticleInternational archives of occupational and environmental health2015

Serum pneumoproteins in tunnel construction workers.

Dag G Ellingsen, Bente Ulvestad, Berit Bakke, Ingebjørg Seljeflot, Lars Barregard, Yngvar Thomassen

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Article in International archives of occupational and environmental health, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing 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

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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

3 citing papers in PubMed.

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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.

Dag G EllingsenNational Institute of Occupational Health, P.O. Box 8149 Dep, 0033, Oslo, Norway. dag.ellingsen@stami.no.
Bente UlvestadNational Institute of Occupational Health, P.O. Box 8149 Dep, 0033, Oslo, Norway.
Berit BakkeNational Institute of Occupational Health, P.O. Box 8149 Dep, 0033, Oslo, Norway.
Ingebjørg SeljeflotDepartment of Cardiology, Center for Clinical Heart Research, Oslo University Hospital Ullevål, Oslo, Norway.
Lars BarregardDepartment of Occupational and Environmental Medicine, University of Gothenburg, Göteborg, Sweden.
Yngvar ThomassenNational Institute of Occupational Health, P.O. Box 8149 Dep, 0033, Oslo, Norway.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe aim was to study inflammatory biomarkers in tunnel construction workers (TCW).

methodsSurfactant protein D (SP-D), Clara cell protein 16 (CC-16) and C-reactive protein (CRP) were studied in serum of 90 TCW and 50 referents before and at the end of an 11-day work period. Personal air sampling was carried out on the two consecutive days before follow-up.

resultsThe TCW's geometric mean exposure to particulate matter and α-quartz were 604 and 74 µg/m(3), respectively. The arithmetic mean concentration of elemental carbon was 51 µg/m(3). The arithmetic mean concentration of SP-D was reduced by 7.6 µg/L in the TCWs and 0.6 µg/L in the referents (p = 0.04) at the end as compared to before the work period. Subjects who had ever been TCW had lower arithmetic mean CC-16 concentrations at baseline (5.4 µg/L) than subjects who had never worked as TCW (6.4 µg/L). Years worked as TCW was significantly associated with an annual mean decline of the CC-16 concentration of 0.04 µg/L. The concentrations of the biomarker of systemic inflammation, CRP, were not affected by exposure in the TCWs. Current smoking and body mass index have a large impact on the measured biomarker concentrations.

conclusionsThe results suggest that former and current TCWs have lower serum CC-16 concentrations than referents, while the concentrations of SP-D decreased during exposure. The serum biomarker of systemic inflammation, CRP, was not altered during exposure. Current smoking and BMI were related to the concentrations of all measured biomarkers.

Indexed as

Confined SpacesConstruction IndustryAdolescentAdultBody Mass IndexCarbonC-Reactive ProteinEnvironmental MonitoringHumansMaleMiddle AgedOccupational ExposureParticulate MatterPulmonary Surfactant-Associated Protein DPulmonary Surfactant-Associated ProteinsQuartzCarbonC-Reactive ProteinParticulate MatterPulmonary Surfactant-Associated Protein DPulmonary Surfactant-Associated ProteinsQuartzUteroglobinCC-16Diesel exhaustSP-DTunnel constructionα-Quartz

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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.