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Clinical features of CD patientsa
| Variable | CD characteristic | Frequency |
|---|---|---|
| Age category | A1 (≤16 yr) | 0 |
| A2 (17–40 yr) | 8 | |
| A3 (≥40 yr) | 12 | |
| Location | L1 (terminal ileum) | 11 |
| L2 (colon) | 2 | |
| L3 (ileum-colon) | 6 | |
| L4 (upper GI tract) | 0 | |
| Behavior | B1 (nonstenotic) | 3 |
| B2 (stenotic) | 4 | |
| B3 (penetrating) | 12 | |
| Disease status | Active | 3 |
| Remission | 8 |
Data collected at sampling time.
