Smoking and ulcerative colitis.


In a case-control study of smoking and ulcerative colitis patients with the disease were much less likely to smoke than community controls matched for age and sex. The difference was substantial, with an estimated relative risk of 3.8 for non-smoking on current habits, was even larger (6.2) when habits at onset of the disease were examined, and was mainly… (More)


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@article{Logan1984SmokingAU, title={Smoking and ulcerative colitis.}, author={Randy Logan and Michael B. Edmond and K. W. Somerville and Michael J. S. Langman}, journal={British medical journal}, year={1984}, volume={288 6419}, pages={751-3} }