[The application of Montreal classification in inflammatory bowel disease].
Bibliographic record
Abstract
OBJECTIVE: To investigate the clinical features of Crohn's disease (CD) and ulcerative colitis (UC) according to the Montreal classification. METHODS: The clinical data of 110 cases of CD or UC were reviewed. The age at diagnosis, location and clinical behavior were assessed with the Montreal criteria. RESULTS: CD patients diagnosed at an age younger than 16 years were rare (3.6%), the majority of the CD patients was diagnosed at 17 - 40 years old (65.5%). Although ileocolon lesions were most common in the patients diagnosed at 17 - 40 years old (37.3%), yet ileum lesions were a little more than those of other parts of digestive tract in the patients diagnosed after 40 years old (14.5%), the difference was not significant (P = 0.054). Stricture frequently occurred (50.4%), especially when the lesions were located at ileum or ileocolon. Perforation rarely happened (5.3%). There was no significant difference between different location groups for clinical behaviors (P = 0.096). The incidence of stricture or perforation was almost same among different age groups (P = 0.984). UC patients mostly presented with mild or moderate symptoms even in the group with extensive lesion. UC patients with severe symptoms were rare (6.8%). There was no significant difference in severity between the groups with different extent of lesion (P = 0.056). CONCLUSIONS: The majority of CD patients was diagnosed at 17 - 40 years old. Stricture is much more than perforation, penetrating, occurring mostly at ileum. UC patients mostly present mild or moderate symptoms, no matter how extensive the lesion is. The extent of the lesion detected with colposcopic examination is not correlated to the severity of clinical manifestations.
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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 | 0.003 | 0.008 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.005 | 0.006 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.001 | 0.002 |
| Open science | 0.002 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.007 | 0.003 |
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".