Retrospective Cohort Study
Copyright ©The Author(s) 2020.
World J Gastroenterol. Oct 7, 2020; 26(37): 5661-5672
Published online Oct 7, 2020. doi: 10.3748/wjg.v26.i37.5661
Figure 3
Figure 3 The risk for developing ulcerative colitis with age and cigarette smoking behavior in the periodontitis and non-periodontitis groups. Error bars represent 95% confidence intervals. A: All ages; B: Age < 65; C: Age ≥ 65. HR: Hazard ratio.