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Risks of developing ulcerative colitis and Crohn’s disease in relation to silica dust exposure in Sweden: a case–control study

Vit. artikkel

Publisert

  • 2020

Objective To determine whether occupational exposure to silica dust causes an increased risk of developing Crohn’s disease (CD) and ulcerative colitis (UC). Design Case–control study of CD (K50) and UC (K51) from 2007 through 2016. Controls were matched to cases (2:1) based on age, sex and county at the time of diagnosis. A job exposure matrix was used to estimate the occupational silica exposure of all cases and controls. Setting Medical and occupational data from the National Outpatient Register were used to implement a case–control analysis, while the two controls used for each case were selected from the National Register of the Total Population. Participants All men and women aged 20–65 years old who were diagnosed with CD (K50) and UC (K51) during the years of study were included and assigned two controls, resulting in 58 136 cases and 116 272 controls. Main outcomes Silica dust exposure correlates with an increased risk of developing UC in men and CD in women. Results The prevalence of UC was significantly higher in the group exposed to silica dust (OR 1.13, 95% CI 1.06 to 1.21) than in controls, particularly in individuals with over 5 years exposure. When stratified by sex, a significantly increased OR was...

Wallden, Albin; Graff, Pål; Bryngelsson, Ing-Liss; Fornander, Louise; Wiebert, Pernilla; Vihlborg, Per
BMJ Open BMJ Publishing Group, BMJ Open
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