P1258 Disease course of inflammatory bowel disease unclassified during the first ten years following diagnosis: A prospective European population-based inception cohort – the Epi-IBD cohort
Notice bibliographique
Résumé
Abstract Background The Epi-IBD cohort is a prospective European population-based cohort of 1,508 patients diagnosed in 2010 and 2011 with inflammatory bowel disease (IBD) according to Copenhagen criteria in centres across 17 European countries. The study aims to describe treatment strategies, disease course and prognosis of IBD unclassified (IBDU) across Europe. Methods Patients with IBDU were defined as not fulfilling the Copenhagen diagnostic criteria of Crohn’s disease (CD) or ulcerative colitis (UC), but still required IBD related treatment and monitoring. They were followed prospectively from the time of diagnosis until December 31st, 2020, death, emigration or loss of follow-up. Clinical data on surgery, hospitalizations, and medical treatment were captured throughout the follow-up period and entered into a validated web-database, www.epi-ibd.org. Patients with IBDU were categorised as CD-like, UC-like or mixed CD-UC based on disease location and continuity of the affected bowel segments at diagnosis. Results In total, 129 IBDU patients aged ≥15 years from 22 centres were included. They comprised 8.5% (N=129/1,508) of the total cohort. The disease location was reported in Table 1 where 4 patients had unknown disease location at baseline. At diagnosis, 16% (N=25/129) were CD-like, 52% (N=62/129) were UC-like and 32% (N=42/129) were mixed CD-UC.During the 10-year follow-up, 32% (N=41/129) were re-classified as either CD (N=16) or UC (N=25). The crude 1-, 5-, and 10-year rates for re-classification of diagnosis were 19%, 26% and 32%. The time to initiation of therapies and the distribution of therapies according to re-classification of IBDU diagnosis at baseline are presented in Figure 1 A-B . Advanced therapies were used in 13% (N=17/129) of patients over the 10-year follow-up, and was initiated after a median period of 1.9 years (inter-quartile range 0.9-8.1). An intestinal resection was required in 7% (N=9/129). After 1, 5, and 10 years, 9%, 19% and 26% of the patients diagnosed with IBDU at baseline, respectively, required hospitalisation. Conclusion After 10 years of follow-up, a third of patients initially diagnosed with IBDU were re-classified as either CD or UC. The disease course was in general mild with a low number of patients requiring advanced therapy, intestinal resection, and hospitalization. However, patients who were re-classified as CD or UC were more frequently treated with medical therapies.
Récupéré en direct depuis OpenAlex et désinversé. Les résumés ne sont pas conservés dans cette base de données : les index inversés représentent 8,6 Go des 9,3 Go de texte de la base, et le serveur dispose de 13 Go libres.
Comment cette classification a été obtenuedéplier
Prédiction machine sur la base complète
Imitation des enseignantsNi prévalence calibrée, ni vérité terrain. Validation humaine à venir. Le volet Gemma est une étiquette directe du modèle pour chaque travail de la base, lue sur la notice réduite au titre. Le volet Codex est un classifieur appris des 10 348 étiquettes directes de Codex et calibré sur les taux pondérés de l'échantillon; les champs sans appui suffisant ne portent aucun appel Codex. Le mode candidate est l'union des deux volets; le consensus est leur intersection. Ces sorties portent le statut machine_predicted_unvalidated et ne sont pas des étiquettes humaines.
Scores du classifieur distillé par catégorie (deux têtes)
| Catégorie | Codex | Gemma |
|---|---|---|
| Métarecherche | 0,001 | 0,001 |
| Méta-épidémiologie (sens strict) | 0,000 | 0,000 |
| Méta-épidémiologie (sens large) | 0,000 | 0,001 |
| Bibliométrie | 0,001 | 0,001 |
| Études des sciences et des technologies | 0,000 | 0,000 |
| Communication savante | 0,001 | 0,001 |
| Science ouverte | 0,000 | 0,001 |
| Intégrité de la recherche | 0,000 | 0,001 |
| Charge utile insuffisante (le modèle a refusé de juger) | 0,002 | 0,000 |
Scores machine (provisoires)
Les deux têtes enseignantes du modèle étudiant, lues sur ce travail. Un score ordonne la base pour la relecture; il n'affirme jamais une catégorie, et le statut de validation accompagne chaque rangée tel quel.
Scores de référence d'un modèle non mature (critères de maturité non atteints, 7 itérations). Un score ordonne; il n'affirme jamais une catégorie.
score_only:v0-immature-baseline · tel quel depuis la passe de notation : score_only signifie que le nombre peut ordonner les travaux, et qu'aucune étiquette de catégorie n'en découleClassification
machine, non validéePrédiction automatique; un appel candidat d’une seule source (Gemma direct ou Codex distillé), pas un consensus.
Le détail, modèle par modèle et score par score, se trouve en fin de page sous « Comment cette classification a été obtenue ».