Time relationships between cessation of smoking and onset of ulcerative colitis

Digestion. 1987;37(2):125-7. doi: 10.1159/000199478.


From 5 centres 154 patients with ulcerative colitis and a history of smoking completed a questionnaire about the temporal relationship between diagnosis of colitis and cessation of smoking. One hundred and thirty-eight of these were ex-smokers and 107 (69.5%) had stopped smoking before the diagnosis of colitis was made. Fifty-six patients (52%) developed colitis within 3 years of stopping smoking. The findings suggest that smoking exerts protective effect against the development of ulcerative colitis.

MeSH terms

  • Adolescent
  • Adult
  • Aged
  • Colitis, Ulcerative / epidemiology*
  • Female
  • Humans
  • Male
  • Middle Aged
  • Smoking*