Occupational exposure to ionizing radiation and risk of lymphoma subtypes: results of the Epilymph European case-control study

Autoři	SATTA Giannin LOI Matte BECKER Nickolau BENAVENTE Yoland DE SANJOSE Sanjos Silvi FORETOVÁ Lenka STAINER Anthon MAYNADIE Mar NIETERS Alexandr MELONI Federic PILIA Ilari CAMPAGNA Marcell PAU Marc ZABLOTSKA Lydia B COCCO Pierluigi
Rok publikování	2020
Druh	Článek v odborném periodiku
Časopis / Zdroj	Environmental health
Fakulta / Pracoviště MU	Lékařská fakulta
Citace
www	https://ehjournal.biomedcentral.com/articles/10.1186/s12940-020-00596-9
Doi	http://dx.doi.org/10.1186/s12940-020-00596-9
Klíčová slova	Ionizing radiation; Lymphoma; Diffuse large B cell lymphoma; Occupational exposure
Popis	Background Evidence linking risk of lymphoma and B-cell lymphoma subtypes to ionizing radiation is inconclusive, particularly at low exposure levels. Methods We investigated risk of lymphoma (all subtypes), B-cell lymphomas, and its major subtypes, associated with low-level occupational exposure to ionizing radiation, in 2346 lymphoma cases and 2463 controls, who participated in the multicenter EpiLymph case-control study. We developed a job-exposure matrix to estimate exposure to ionizing radiation, distinguishing between internal and external radiation, and we applied it to the lifetime occupational history of study subjects, We calculated the Odds Ratio (OR) and its 95% confidence interval (95% CI) for lymphoma (all subtypes combined), B-cell lymphoma, and its major subtypes using unconditional, polytomous logistic regression adjusting for age, gender, and education. Results We did not observe an association between exposure metrics of external and internal radiation and risk of lymphoma (all subtypes), nor with B-cell lymphoma, or its major subtypes, at the levels regularly experienced in occupational settings. An elevated risk of diffuse large B cell lymphoma was observed among the most likely exposed study subjects with relatively higher exposure intensity, which would be worth further investigation. Conclusions Further investigation is warranted on risk of B cell lymphoma subtypes associated with low-level occupational exposure to external ionizing radiation, and to clarify whether lymphoma should be included among the cancer outcomes related to ionizing radiation.