%0 Journal Article %T Lung cancer mortality in the European cohort of titanium dioxide workers: a reanalysis of the exposure–response relationship %+ Université de Lausanne = University of Lausanne (UNIL) %+ Mass Screening Registry %+ Direction de l'Evaluation des Risques (DER) %+ Institut de recherche en santé, environnement et travail (Irset) %+ University of Manchester [Manchester] %+ Università degli studi di Torino = University of Turin (UNITO) %+ Centre International de Recherche contre le Cancer - International Agency for Research on Cancer (CIRC - IARC) %+ Instituto de Salud Global - Institute For Global Health [Barcelona] (ISGlobal) %+ University of California (UC) %A Guseva Canu, Irina %A Gaillen-Guedy, Alan %A Antilla, Ahti %A Charles, Sandrine %A Fraize-Frontier, Sandrine %A Luce, Danièle %A Mcelvenny, Damien Martin %A Merletti, Franco %A Michel, Cecile %A Pukkala, Eero %A Schubauer-Berigan, Mary %A Straif, Kurt %A Wild, Pascal %A Richardson, David %Z ANSES (2017-CRD-18) %< avec comité de lecture %@ 1351-0711 %J Occupational and Environmental Medicine %I BMJ Publishing Group %V 79 %N 9 %P 637-640 %8 2022-09-01 %D 2022 %R 10.1136/oemed-2021-108030 %M 35501125 %K Dust %K Longitudinal studies %K Lung Diseases %K Interstitial %K Occupational Health %K Statistics as Topic %Z Life Sciences [q-bio]/Toxicology %Z Life Sciences [q-bio]/Santé publique et épidémiologie %Z Life Sciences [q-bio]Journal articles %X Objectives Animal bioassays have demonstrated convincing evidence of the potential carcinogenicity to humans of titanium dioxide (TiO 2 ), but limitations in cohort studies have been identified, among which is the healthy worker survivor effect (HWSE). We aimed to address this bias in a pooled study of four cohorts of TiO 2 workers. Methods We reanalysed data on respirable TiO 2 dust exposure and lung cancer mortality among 7341 male workers employed in TiO 2 production in Finland, France, UK and Italy using the parametric g-formula, considering three hypothetical interventions: setting annual exposures at 2.4 (U.S. occupational exposure limit), 0.3 (German limit) and 0 mg/m 3 for 25 and 35 years. Results The HWSE was evidenced. Taking this into account, we observed a positive association between lagged cumulative exposure to TiO 2 and lung cancer mortality. The estimated number of lung cancer deaths at each age group decreased across increasingly stringent intervention levels. At age 70 years, the estimated number of lung cancer deaths expected in the cohort after 35-year exposure was 293 for exposure set at 2.4 mg/m 3 , 235 for exposure set at 0.3 mg/m 3 , and 211 for exposure set at 0 mg/m 3 . Conclusion This analysis shows that HWSE can hide an exposure–response relationship. It also shows that TiO 2 epidemiological data could demonstrate an exposure–effects relationship if analysed appropriately. More epidemiological studies and similar reanalyses of existing cohort studies are warranted to corroborate the human carcinogenicity of TiO 2 . This human evidence, when combined with the animal evidence, strengthens the overall evidence of carcinogenicity of TiO 2 . %G English %L anses-03663925 %U https://anses.hal.science/anses-03663925 %~ ANSES %~ UNIV-RENNES1 %~ UNIV-ANGERS %~ SANTE_PUB_INSERM %~ IFR140 %~ IRSET %~ IRSET-TREC %~ IRSET-NEED %~ IRSET-TNGC %~ UR1-UFR-SVE %~ UR1-HAL %~ UR1-SDV %~ AGREENIUM %~ IRSET-10 %~ TEST-UR-CSS %~ UNIV-RENNES %~ UR1-BIO-SA