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Comparisons of risk of periodontitis by subgroups of IBD.
| N | Event | Person-Year | Incidence rate | Crude HR | Adjusted HR | |
|---|---|---|---|---|---|---|
| Non-IBD cohort | 108 | 58 | 183 | 316.94 | 1 | 1 |
| IBD cohort | ||||||
| Crohn's disease | 7 | 6 | 4 | 1500 | 4.46 (1.88–10.56) | 3.95 (1.59–9.82) |
| Ulcerative colitis | 20 | 16 | 62 | 258.06 | 1.51 (0.84–2.69) | 1.39 (0.69–2.46) |
IBD: Inflammatory bowel disease; IRR: Incidence rate ratio; HR: Hazard ratio.
