Table 1.
Characteristics of the patient population
| Variables | Crohn’s disease | Ulcerative colitis |
|---|---|---|
| Total number of children | 240 | 183 |
| Age at onset (months): Mean±SD (range) | 149.3±50.1 (0.2-216) | 129.7±64.6 (6.0-285.0) |
| Age at presentation (months): Mean±SD (range) | 174.4±40.7 (29.3-223.2) | 134.2±66.5 (8.4-285.3) |
| Age at final diagnosis (months): Mean±SD (range) | 159.3±52.6 (0.3-224.6) | 128.7±62 (16.8-285.5) |
| Gender: Males (%) | 144 (60) | 94 (51.4) |
| Gender: Females (%) | 89 (48.6) | |
| Consanguinity: Children (% positive) | 77/210 (37) | 64/170 (36) |
| Family history of IBD (% positive) | 36/208 (17) | 15/176 (8.5) |
| CD locations at presentation: No valid 202 (%) | Terminal ileal: L1=69 (34.2) | |
| Colonic: L2=31 (15.4) | ||
| Ileocolonic: L3=98 (48.4) | ||
| Upper intestinal disease: L4=4 (2) | ||
| CD behavior at presentation: No valid: 235 (%) | Non-stricturing non-penetrating:……. B1=160 (68.1) | |
| Stricturing:…………………………… B2=44 (18.7) | ||
| Penetrating:…………………….B3=15 (6.4) | ||
| Both stricturing and penetrating: …B2B3 16 (6.8) | ||
| UC extent at presentation: No valid: 170 (%) | Ulcerative proctitis: E1=15 (8.8) | |
| Left-sided (distal to splenic flexure): E2=38 (22.4) | ||
| Extensive (hepatic flexure distally): E3=34 (20.0) | ||
| Pancolitis (proximal to hepatic flexure): E4=83 (48.8) | ||