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Characteristics of the Study Populations
| Crohn’s Disease | Ulcerative Colitis | |
|---|---|---|
| Study population, No. cases | 9019 | 20,913 |
| Sex, No. (%) | ||
| Male | 3925 (43.5) | 9961 (47.6) |
| Female | 5094 (56.5) | 10,952 (52.4) |
| Age at diagnosis, mean (SD), y | 42.2 (18.3) | 47.5 (18.4) |
