Work

Lung Cancer Risks Associated with Occupational Exposure to Pairs of Five Lung Carcinogens: Results from a Pooled Analysis of Case-Control Studies (SYNERGY)

Year: 2024
Type: article
Abstract: BACKGROUND: While much research has been done to identify individual workplace lung carcinogens, little is known about joint effects on risk when workers are exposed to multiple agents. OBJECTIVES: We investigated the pairwise joint effects of occupational exposures to asbestos, respirable crystalline silica, metals (i.e., nickel, chromium-VI), and polycyclic aromatic hydrocarbons (PAH) on lung cancer risk, overall and by major histologic subtype, while accounting for cigarette smoking. METHODS: In the international 14-center SYNERGY project, occupational exposures were assigned to 16,901 lung cancer cases and 20,965 control subjects using a quantitative job-exposure matrix (SYN-JEM). Odds ratios (ORs) and 95% confidence intervals (CIs) were computed for ever vs. never exposure using logistic regression models stratified by sex and adjusted for study center, age, and smoking habits. Joint effects among pairs of agents were assessed on multiplicative and additive scales, the latter by calculating the relative excess risk due to interaction (RERI). RESULTS: = 0.05). In women, several pairwise joint effects were observed for small cell lung cancer including exposure to PAH/silica (OR = 5.12; CI: 1.77, 8.48), and to asbestos/silica (OR = 4.32; CI: 1.35, 7.29), where exposure to PAH/silica resulted in a synergistic effect (RERI: 3.45; CI: 0.10, 6.8). DISCUSSION: Small or no deviation from additive or multiplicative effects was observed, but co-exposure to the selected lung carcinogens resulted generally in higher risk than exposure to individual agents, highlighting the importance to reduce and control exposure to carcinogens in workplaces and the general environment. https://doi.org/10.1289/EHP13380.
Institutions: Centre international de recherche sur le cancer, Utrecht University, Institute for Prevention and Occupational Medicine, Université de Montréal, Karolinska Institutet, Stony Brook University, University of Bologna, Inserm, Université Paris Cité, Université Paris-Saclay, Centre de recherche en Epidémiologie et Santé des Populations, École des Hautes Études en Santé Publique, Institut de Recherche en Santé, Environnement et Travail, Université de Rennes, Helmholtz Munich, Institut und Poliklinik für Arbeits-, Sozial- und Umweltmedizin, Ludwig-Maximilians-Universität München, Institut für Medizinische Informationsverarbeitung, Biometrie und Epidemiologie, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Division of Cancer Epidemiology and Genetics, University of Turin, Institut für Medizinische Informatik, Biometrie und Epidemiologie, Essen University Hospital, University of Bremen, Leibniz Institute for Prevention Research and Epidemiology - BIPS, Universidad de Oviedo, Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública, Instituto de Investigación Sanitaria del Principado de Asturias, Russian Cancer Research Center NN Blokhin, University of Liverpool, The Maria Sklodowska-Curie National Research Institute of Oncology, Nofer Institute of Occupational Medicine, University of Toronto, Occupational Cancer Research Centre, Ontario Health, Charles University, Masaryk Memorial Cancer Institute, Palacký University Olomouc, Public Health Authority of the Slovak Republic, Catholic University in Ruzomberok, Institutul National de Sanatate Publica, ASL Roma, Boston College, Barcelona Institute for Global Health
Language: English
Field: Medicine
Open Access status: gold
Estimated APC paid: $4,500
OpenAlex ID: W4390973071
FWCI: 14.98
Cites: 24
Cited by: 56
Related to: 10