ArticleSafety and health at work2017
Cancer Risks among Welders and Occasional Welders in a National Population-Based Cohort Study: Canadian Census Health and Environmental Cohort.
Article in Safety and health at work, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 5 of them syntheses that pooled it.
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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.
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.
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Who cites it
23 citing papers in PubMed, 5 syntheses or guidelines pooled it.
- Welding Fumes Exposure and the Risk of Head and Neck and Gastrointestinal Cancer: A Systematic Review and Meta-Analysis.La Medicina del lavoro · 2025Pooled it
- Risk of bladder, kidney and prostate cancer from occupational exposure to welding fumes: a systematic review and meta-analysis.International archives of occupational and environmental health · 2024Pooled it
- Association between Asbestos Exposure and the Incidence of Kidney Cancer: a Weight-of-Evidence Evaluation and Meta-analysis.Current environmental health reports · 2023Pooled it
- Welding Fumes, a Risk Factor for Lung Diseases.International journal of environmental research and public health · 2020Pooled it
- Welding fumes and lung cancer: a meta-analysis of case-control and cohort studies.Occupational and environmental medicine · 2019Pooled it
- Welding and brazing fumes and lung cancer risk: a systematic review and meta-analysis.Journal of occupational medicine and toxicology (London, England) · 2026Review
- Underlying mechanisms of exercise protection against diabetes mellitus: a narrative review.Frontiers in endocrinology · 2026Review
- Occupational and environmental iron exposure: a hidden risk factor in breast cancer etiology.Annals of medicine and surgery (2012) · 2026Review
- Management and Collection of Occupational Data for Health (ODH) in National Public Health Statistics: Evaluation and Recommendations for Korea.Safety and health at work · 2025Article
- Occupational hazards and bladder cancer-An umbrella review of the risk in workers exposed over the past 30 years.Frontiers in public health · 2025Review
- Thoracic SMARCA4-Deficient Undifferentiated Tumor in a 40-Year-Old Male Welder With No Smoking History.Cureus · 2024Article
- Factors Influencing the Use of Control Measures to Reduce Occupational Exposure to Welding Fume in Australia: A Qualitative Study.Safety and health at work · 2023Article
- Research Recommendations for Selected IARC-Classified Agents: Impact and Lessons Learned.Environmental health perspectives · 2023Review
- Mesothelioma Risk among Construction Workers According to Job Title: Data from the Italian Mesothelioma Register.La Medicina del lavoro · 2023Article
- Effects of Tobacco Smoking on the Survivability of Patients with Multiple Cancers and Single Lung Cancer.International journal of environmental research and public health · 2022Article
- Epidemiological Study of Risk Factors for Lung Cancer in KwaZulu-Natal, South Africa.International journal of environmental research and public health · 2022Article
- Effects of Simultaneous Exposure to Smoking and Welding Fume on Pulmonary Function Tests in Spot Welders.Tanaffos · 2021Article
- Exposure to metal fumes and circulating miRNAs in Algerian welders.International archives of occupational and environmental health · 2020Article
- [Primary lung cancer and occupational exposure in a North African population].The Pan African medical journal · 2020Article
- Biomonitoring of Metal Exposure During Additive Manufacturing (3D Printing).Safety and health at work · 2019Article
Corrections and comments
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundWelders are exposed to many known and suspected carcinogens. An excess lung cancer risk among welders is well established, but whether this is attributable to welding fumes is unclear. Excess risks of other cancers have been suggested, but not established. We investigated welding cancer risks in the population-based Canadian Census Health and Environmental Cohort.
methodsAmong 1.1 million male workers, 12,845 welders were identified using Standard Occupational Classification codes and followed through retrospective linkage of 1991 Canadian Long Form Census and Canadian Cancer Registry (1992-2010) records. Hazard ratios (HRs) were calculated using Cox proportional hazards models based on estimated risks of lung cancer, mesothelioma, and nasal, brain, stomach, kidney, and bladder cancers, and ocular melanoma. Lung cancer histological subtypes and risks by industry group and for occasional welders were examined. Some analyses restricted comparisons to blue-collar workers to minimize effects of potential confounders.
resultsAmong welders, elevated risks were observed for lung cancer [HR: 1.16, 95% confidence interval (CI): 1.03-1.31], mesothelioma (HR: 1.78, 95% CI: 1.01-3.18), bladder cancer (HR: 1.40, 95% CI: 1.15-1.70), and kidney cancer (HR: 1.30, 95% CI: 1.01-1.67). When restricted to blue-collar workers, lung cancer and mesothelioma risks were attenuated, while bladder and kidney cancer risks increased.
conclusionExcess risks of lung cancer and mesothelioma may be partly attributable to factors including smoking and asbestos. Welding-specific exposures may increase bladder and kidney cancer risks, and particular sources of exposure should be investigated. Studies that are able to disentangle welding effects from smoking and asbestos exposure are needed.
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