P732 Clinical characteristics of inflammatory bowel disease in Belgian immigrants from Moroccan and Caucasian origin
Bibliographic record
Abstract
Background: Moroccans are a growing minority in Belgium since the 1960s. Few studies have examined the characteristics of inflammatory bowel disease (IBD) in this population. The aim of our study was to compare IBD characteristics between immigrants from Moroccan and Caucasian origin. Methods: We performed a retrospective chart review of all first and second generation immigrants with Crohn's disease (CD) or Ulcerative colitis (UC) followed in our IBD Center from 2010 to 2016. Disease characteristics (Montreal classification), clinical variables and treatment were extracted to define disease severity and prognosis. Results: A total of 83 Moroccans (57 CD/26 UC, 53 men) and 72 Caucasian immigrants (42 CD/30 UC, 37 men) patients were analysed. For CD patients, penetrating disease (26/57 vs 11/42), perineal localisation (24/57 vs 12/42) were more frequent in Moroccan. Although there were no significant differences in medication prescription between the two groups (immunosuppressive:IS (49/57 vs 32/42), biologics (32/57 vs 23/42), there was a higher number of hospitalisations (37/57 vs 15/42) and surgeries (33/57 vs 19/42) in the Moroccan population especially with the most severe disease who needed a definitive stoma (5/57 vs 0/42). For UC patients (26 Moroccans, 30 Caucasians), no differences in localisation, medications or need for hospitalisation were observed. Colectomy was performed in 4 Moroccans and 3 Caucasians. Table 1. Summary of results Conclusions: We report a higher proportion of CD in Moroccan compared to Caucasian immigrants in our active IBD cohort. Moreover, Moroccan CD patients tend to have more severe disease, characterized by more penetrating disease, more perineal disease leading to higher rates of CD-related surgery and definitive stoma. Further research is required to confirm these observations and determine if these findings reflect genetic or environmental differences.
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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 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 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) | 0.002 | 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".