Table 3.
Age- and sex-adjusted incidence rate (cases per 100,000 person-years) for Crohn's disease and ulcerative colitis by decade in Olmsted County, Minnesota between 1970 and 2010.
| Crohn's disease | ||||||
|---|---|---|---|---|---|---|
| Decade | Female (N) | Female (Incidence) | Male (N) | Male (Incidence) | Total (N) | Total (95% Confidence Interval) |
| 1970-1979 | 41 | 8.2 | 26 | 5.7 | 67 | 6.9 (5.1-8.8) |
| 1980-1989 | 35 | 5.8 | 37 | 7.3 | 72 | 6.5 (4.9-8.1) |
| 1990-1999 | 46 | 8.2 | 50 | 9.9 | 96 | 9.0 (7.1-10.9) |
| 2000-2010 | 87 | 10.6 | 88 | 10.8 | 175 | 10.7 (9.1-12.3) |
| 1970-2010 | 209 | 8.6 | 201 | 8.9 | 410 | 8.8 (7.9-9.7) |
| Ulcerative colitis | ||||||
|---|---|---|---|---|---|---|
| Decade | Female (N) | Female (Incidence) | Male (N) | Male (Incidence) | Total (N) | Total (95% Confidence Interval) |
| 1970-1979 | 39 | 8.1 | 40 | 10.3 | 79 | 9.2 (7.0-11.4) |
| 1980-1989 | 32 | 6.0 | 63 | 14.6 | 95 | 10.2 (8.0-12.5) |
| 1990-1999 | 52 | 8.7 | 62 | 11.8 | 114 | 10.2 (8.2-12.2) |
| 2000-2010 | 88 | 10.7 | 107 | 14.0 | 195 | 12.2 (10.5-13.9) |
| 1970-2010 | 211 | 8.8 | 272 | 12.8 | 483 | 10.7 (9.7-11.7) |