Long-Term Prognosis of Early-Onset Chrohn's Disease Diagnosed in Childhood or Adolescence
Bibliographic record
Abstract
Long-term follow-up data on Crohn's disease diagnosed before 20 years of age is limited. Mortality, intestinal malignancy and the need for resection were assessed in 224 patients with early-onset disease (96 males, 42.9%; 128 females, 57.1%). Mean follow-up was 12.2 years; more than 50% of patients were seen for over 10 years (almost 10% for over 25 years). Most patients were diagnosed from ages 13 to 19 years, rather than in childhood. Ileocolonic disease was most common (128 of 224; 57.1%), while upper tract involvement (42 of 224; 18.8%) was frequent. Complex disease with strictures (28.6%) or penetrating complications (46.4%) was common. To date, one patient with early-onset disease died from a drug overdose and one developed rectal cancer, but epithelial dysplasia has not been reported in endoscopic biopsies or resected intestine. One or more intestinal resections were required in 126 patients (56.3%; 58 males and 68 females). More than one resection was needed in 52 patients (23.2%). The mean time from diagnosis to first resection was 4.2 years and from first to second resection was 6.6 years, with most resections required in the first two years. Most patients who needed one or more resections had ileocolonic disease and had complex stricturing or penetrating disease. Information on long-term follow-up of early-onset Crohn's disease is crucial to avoid the direct extrapolation of adult data to children and adolescents.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.002 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".