Ethnic Differences in the Smoking-related Risk of Inflammatory Bowel Disease: A Systematic Review and Meta-analysis.
Daniele PiovaniClaudia PansieriSoumya R R KothaAmanda C PiazzaCelia-Louise CombergLaurent Peyrin-BirouletSilvio DaneseStefanos BonovasPublished in: Journal of Crohn's & colitis (2022)
This meta-analysis did not identify any increased risk of CD in smokers in ethnicities other than non-Jewish Whites, and confirmed the protective effect of smoking on UC occurrence. Future research should characterise the genetic background of CD patients across different ethnicities to improve our understanding of the role of smoking in CD pathogenesis.