Increased risk of gastric cancer in workers with occupational dust exposure

Mo Yeol Kang, Jiyoun Jung, Jung Wan Koo, Inah Kim, Hyoung Ryoul Kim, Jun Pyo Myong

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Background/Aims: Workers who are exposed to dust in the workplace tend to show a higher incidence of gastric cancer. Nevertheless, scientific evidence to sup-port an association between dust exposure and the risk of gastric cancer is inade-quate. This study aimed to investigate whether or not occupational dust exposure influences the risk of gastric cancer. Methods: We collected the electronic data from the Pneumoconiosis Health Examination (PHE) program, provided by the Ministry of Employment and Labor and the Korea Workers’ Compensation and Welfare Service from 2002 to 2017. The PHE database was linked to the National Health Insurances databases. The age-standardized incidence ratio (SIR) and 95% confidence intervals (CIs) of the risk of gastric cancers were evaluated in workers with occupational dust exposure, and the results were compared to those in the general population. Results: From 2004 to 2015, 1,543 cases of gastric cancer were observed in the male participants, as compared with 1,174 of expected cases, which yielded an SIR of 1.314 (95% CI, 1.249 to 1.380). Under dust exposure, the risk of gastric cancer was increased 23.9% in the male participants (95% CI, 19.9 to 27.5), and the degree of impairment of lung function was inversely related to the risk of gastric cancer. Conclusions: Workers with occupational dust exposure were at higher risk of de-veloping gastric cancer than the general population. Thus, future efforts for the prevention of gastric cancer are necessary for dust exposed workers.

Original languageEnglish
Pages (from-to)S18-S26
JournalKorean Journal of Internal Medicine
StatePublished - 2021


  • Incidence
  • Occupation dust
  • Stomach neoplasms


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