Occupational bladder cancer: A cross section survey of previous employments, tasks and exposures matched to cancer phenotypes.

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ID: 264350
2020
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Abstract
Up to 10% of Bladder Cancers may arise following occupational exposure to carcinogens. We hypothesised that different cancer phenotypes reflected different patterns of occupational exposure.Consecutive participants, with bladder cancer, self-completed a structured questionnaire detailing employment, tasks, exposures, smoking, lifestyle and family history. Our primary outcome was association between cancer phenotype and occupational details.We collected questionnaires from 536 patients, of whom 454 (85%) participants (352 men and 102 women) were included. Women were less likely to be smokers (68% vs. 81% Chi sq. p<0.001), but more likely than men to inhale environmental tobacco smoke at home (82% vs. 74% p = 0.08) and use hair dye (56% vs. 3%, p<0.001). Contact with potential carcinogens occurred in 282 (62%) participants (mean 3.1 per worker (range 0-14)). High-grade cancer was more common than low-grade disease in workers from the steel, foundry, metal, engineering and transport industries (p<0.05), and in workers exposed to crack detection dyes, chromium, coal/oil/gas by-products, diesel fumes/fuel/aircraft fuel and solvents (such as trichloroethylene). Higher staged cancers were frequent in workers exposed to Chromium, coal products and diesel exhaust fumes/fuel (p<0.05). Various workers (e.g. exposed to diesel fuels or fumes (Cox, HR 1.97 (95% CI 1.31-2.98) p = 0.001), employed in a garage (HR 2.19 (95% CI 1.31-3.63) p = 0.001), undertaking plumbing/gas fitting/ventilation (HR 2.15 (95% CI 1.15-4.01) p = 0.017), undertaking welding (HR 1.85 (95% CI 1.24-2.77) p = 0.003) and exposed to welding materials (HR 1.92 (95% CI 1.27-2.91) p = 0.002)) were more likely to have disease progression and receive radical treatment than others. Fewer than expected deaths were seen in healthcare workers (HR 0.17 (95% CI 0.04-0.70) p = 0.014).We identified multiple occupational tasks and contacts associated with bladder cancer. There were some associations with phenotype, although our study design precludes robust assessment.
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reed2020occupationalplos Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Reed, Oliver;Jubber, Ibrahim;Griffin, Jon;Noon, Aidan P;Goodwin, Louise;Hussain, Syed;Cumberbatch, Marcus G;Catto, James W F;
Journal PloS one
Year 2020
DOI
10.1371/journal.pone.0239338
URL
Keywords
Cancer cell biology molecular biology

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