Research Article
Lactose Malabsorption and Lactose Intolerance in Children with Inflammatory Bowel Diseases
| | Symbol | Description | (%) |
| Crohn’s disease |
| Age of diagnosis | A1a | 0–<10 years | 6 (14%) | A1b | 10–17 years | 35 (81.4%) | A2 | 17-40 years | 2 (4.6%) | A3 | >40 years | — |
| Location | L1 | Distal 1/3 ileum (±limited cecal disease) | 20 (46.5%) | L2 | Colonic | 6 (13.9%) | L3 | Ileocolonic | 13 (30.3%) | L4a | Upper disease proximal to ligament of Treitz | 12 (27.9%) | L4b | Upper disease distal to ligament of Treitz and proximal to distal 1/3 ileum | 6 (13.9%) |
| Behaviour | B1 | Nonstricturing Nonpenetrating | 31 (72.1%) | B2 | Stricturing | 9 (20.9%) | B3 | Penetrating | 3 (7%) | p | Perianal disease modifier | 7 (16.3%) |
| Growth | G0 | No evidence of growth delay | 31 (72.1%) | G1 | Growth delay | 12 (27.9%) |
| Ulcerative colitis |
| Extent | E1 | Ulcerative proctitis | 6 (19.4%) | E2 | Left-sided UC (distal to splenic flexure) | 10 (32.2%) | E3 | Extensive (hepatic flexure distally) | 6 (19.4%) | E4 | Pancolitis (proximal to hepatic flexure) | 9 (29%) |
| Severity | S0 | Never severe | 24 (77.4%) | S1 | Ever severe | 7 (22.5%) |
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