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Upper gastrointestinal (UGI) tract involvement in Crohn’s disease (n=119)
| Site | All, n (%) | <17 years, n (%) | 17–40 years, n (%) | >40 years, n (%) |
|---|---|---|---|---|
| L1 | 30 (25.2) | 4 (16.7) | 23 (27.1) | 3 (30.0) |
| L2 | 14 (11.8) | 3 (12.5) | 9 (10.6) | 2 (20.0) |
| L3 | 72 (60.5) | 17 (70.8) | 50 (58.8) | 5 (50.0) |
| UGI only | 3 (2.5) | 0 (0.0) | 3 (3.5) | 0 (0.0) |
For the ileocolon (L3) category, P<0.05 compared with the ileum (L1), colon (L2) or UGI categories
