Risk of morbidity with stomach cancer among workers employed at radiation-hazardous enterprise

We performed retrospective research among a cohort made up of workers employed at "Mayak" Production Association (Mayak PA), a state nuclear enterprise, who had been exposed to long-term external gamma-irradiation and internal alpha-irradiation caused by plutonium-239 under inhalation introduction. Our research goal was to assess impacts exerted by occupational irradiation and non-radiation factors on a risk of morbidity with stomach cancer (SC) in workers employed at Mayak PA. We used individual data on occupational irradiation doses obtained from "Dosimetric system for Mayak PA workers - 2008" for external gamma-irradiation, and "Dosimetric system for Mayak PA workers - 2013" for internal alpha-irradiation. We applied Poisson regression to calculated odds ratio (OR) for morbidity with stomach cancer among the examined cohort both for radiation and non-radiation factors. We detected statistically significant influence exerted on risk of morbidity with SC among workers employed at Mayak PA