Prior inflammatory bowel disease in people with depression or anxiety: observed numbers of people with depression or anxiety and prior inflammatory bowel disease, expected numbers, the ratio of observed to expected, and 95% confidence intervals
| First condition | Second condition | Interval between first and second conditions | Observed | Expected | O/E (95% CI) |
| Ulcerative colitis | Depression | all time intervals | 70 | 57.6 | 1.21 (0.95, 1.54) |
| <1 year | 25 | 10.5 | 2.39 (1.54, 3.53) | ||
| 1–4 years | 20 | 17.9 | 1.12 (0.68, 1.73) | ||
| 5+ years | 25 | 29.3 | 0.85 (0.55, 1.26) | ||
| Ulcerative colitis | Anxiety | all time intervals | 29 | 17.2 | 1.68 (1.13, 2.42) |
| <1 year | 10 | 2.6 | 3.79 (1.80, 6.99) | ||
| 1–4 years | 5 | 5.9 | 0.85 (0.27, 2.0) | ||
| 5+ years | 14 | 8.7 | 1.61 (0.88, 2.7) | ||
| Crohn's disease | Depression | all time intervals | 74 | 44.4 | 1.67 (1.31, 2.09) |
| <1 year | 25 | 4.7 | 5.27 (3.41, 7.79) | ||
| 1–4 years | 21 | 15.6 | 1.35 (0.83, 2.06) | ||
| 5+ years | 28 | 24.1 | 1.16 (0.77, 1.68) | ||
| Crohn's disease | Anxiety | all time intervals | 21 | 13.6 | 1.54 (0.95, 2.36) |
| <1 year | 7 | 1.3 | 5.26 (2.09, 10.91) | ||
| 1–4 years | 3 | 4.8 | 0.62 (0.12, 1.84) | ||
| 5+ years | 11 | 7.4 | 1.49 (0.74, 2.66) |