Table 2
Incidence (with 95% confidence intervals) of inflammatory bowel disease (IBD) in children and adolescents 0–15 years of age in northern Stockholm 1990–2001
| Incidence per 100 000 | |||||
|---|---|---|---|---|---|
| n | IBD | CD | UC | IC | |
| CD, Crohn’s disease; UC, ulcerative colitis; IC, indeterminate colitis. | |||||
| n | 152 | 102 | 45 | 5 | |
| Overall | 152 | 7.4 (6.2–8.6) | 4.9 (4.0–6.0) | 2.2 (1.6–2.9) | 0.2 (0.1–0.6) |
| Year | |||||
| 1990–1992 | 25 | 5.2 (3.4–7.7) | 1.7 (0.7–3.3) | 3.3 (1.9–5.4) | 0.2 (0.0–1.2) |
| 1993–1995 | 29 | 5.6 (3.8–8.1) | 3.5 (2.1–5.5) | 1.8 (0.8–3.3) | 0.4 (0.0–1.4) |
| 1996–1998 | 41 | 7.7 (5.5–10.5) | 5.6 (3.8–8.1) | 1.9 (0.9–3.5) | 0.2 (0.0–1.0) |
| 1999–2001 | 57 | 10.5 (7.5–13.5) | 8.4 (6.2–11.3) | 1.8 (0.9–3.4) | 0.2 (0.0–1.0) |
| Age (y) | |||||
| 0–4 | 6 | 0.9 (0.3–1.9) | 0.7 (0.2–1.7) | 0.0 (0.0–0.0) | 0.1 (0.0–0.8) |
| 5–9 | 38 | 5.7 (4.0–7.8) | 4.5 (3.0–6.4) | 1.1 (0.4–2.2) | 0.2 (0.0–0.8) |
| 10–15 | 108 | 15.2 (12.5–18.3) | 9.4 (7.3–17.4) | 5.3 (3.8–7.3) | 0.4 (0.1–1.2) |
| Sex | |||||
| Male | 91 | 8.5 (7.3–11.1) | 6.2 (5.0–8.2) | 2.2 (1.5–3.5) | 0.2 (0.0–0.7) |
| Female | 61 | 6.0 (4.8–7.5) | 3.6 (2.5–4.8) | 2.1 (1.2–3.0) | 0.5 (0.1–0.8) |
