1. Occupational exposure to endotoxins and lung cancer risk results of the ICARE Study
- Author
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Monica Neri, Gwenn Menvielle, Florence Guida, Danièle Luce, Marie Sanchez, Mireille Matrat, Isabelle Stücker, Florence Molinié, Soumaya Ben Khedher, Sylvie Cénée, Centre de recherche en épidémiologie et santé des populations (CESP), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Université Paris-Sud - Paris 11 (UP11)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Hôpital Paul Brousse-Institut National de la Santé et de la Recherche Médicale (INSERM), Imperial College London, Institut de recherche en santé, environnement et travail (Irset), Université d'Angers (UA)-Université de Rennes (UR)-École des Hautes Études en Santé Publique [EHESP] (EHESP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Structure Fédérative de Recherche en Biologie et Santé de Rennes ( Biosit : Biologie - Santé - Innovation Technologique ), La Fondation De France, Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Université Paris-Sud - Paris 11 (UP11)-Hôpital Paul Brousse-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ), Université d'Angers (UA)-Université de Rennes 1 (UR1), and Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-École des Hautes Études en Santé Publique [EHESP] (EHESP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Structure Fédérative de Recherche en Biologie et Santé de Rennes ( Biosit : Biologie - Santé - Innovation Technologique )
- Subjects
Male ,Work ,medicine.medical_specialty ,Lung Neoplasms ,endotoxins ,Cumulative Exposure ,Adenocarcinoma of Lung ,Adenocarcinoma ,Logistic regression ,Toxicology ,03 medical and health sciences ,0302 clinical medicine ,Risk Factors ,Internal medicine ,Odds Ratio ,medicine ,Humans ,Animal Husbandry ,Occupations ,Workplace ,Lung cancer ,Lung ,Aged ,business.industry ,case-control studies ,Smoking ,Confounding ,Public Health, Environmental and Occupational Health ,Case-control study ,Odds ratio ,occupational exposure ,Middle Aged ,medicine.disease ,030210 environmental & occupational health ,Confidence interval ,3. Good health ,lung cancer ,Logistic Models ,030220 oncology & carcinogenesis ,Female ,[SDV.SPEE]Life Sciences [q-bio]/Santé publique et épidémiologie ,France ,Occupational exposure ,business - Abstract
Purpose We investigated the role of occupational exposure to endotoxin in lung cancer risk in a French population based case-control study. Methods Lifelong work histories of 2926 cases and 3555 controls were collected using standardised questionnaires. Estimation of endotoxin exposure was based on a publication issued by the Institut National de Recherche et de Securite (INRS), which reported measurements in biological aerosols workstations. Several exposure-related variables were created: intensity ( 1000UE/m³), total duration (years), life time cumulative exposure (UE/m³*years) and time since cessation (years). Smoking history was combined into a comprehensive smoking index (CSI) that included mean number of cigarettes/day, duration and time since cessation. Odds ratios (OR) and 95 % confidence intervals (CI) were estimated using unconditional logistic regression models and controlled for main confounding factors including CSI. Results We found an inverse significant association between high endotoxin exposure and lung cancer risk (151 cases/336 controls; OR = 0.64, 95% Cl = 0.5–0.82). The main activity sectors entailing high exposure included dairy, cattle, poultry and pig farms. In contrast, a statistically significant positive association was found for low exposure (OR = 1.33, 95% Cl = 1.08–1.64) (eg. sawmills, wool industry, meat processing). Using restricted splines cubic models, we observed that the association between cumulative endotoxin exposures and lung cancer risk departed significantly from linearity. In addition, the risk decreased with duration and increased with time since cessation, irrespective of the exposure intensity. Analysis by subgroups showed an interaction with tobacco consumption, and light smokers appeared to be more sensitive to endotoxin protective effect. Conclusions Our findings suggest that high exposure to endotoxin confers protection against lung cancer.
- Published
- 2017
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