A205 IMPACT OF THE PANDEMIC ON BUDESONIDE MMX DISPENSING AND TREATMENT FAILURE IN ULCERATIVE COLITIS
Bibliographic record
Abstract
Abstract Background Budesonide MMX is a locally acting corticosteroid with reduced side effects compared to prednisone. During the pandemic, budesonide MMX may have been preferred due to its favourable side effect profile. Aims To analyze rates of budesonide MMX dispensing and treatment failure before / during the pandemic. Methods We analyzed population-based administrative healthcare data from Alberta to identify people dispensed budesonide MMX who met three criteria: 1. incident cases of ulcerative colitis (UC) after January 1, 2018; 2. ≥18 years old; 3. not concurrently on prednisone. We defined failure of budesonide MMX as subsequent prednisone dispensing within 30 days. We calculated rates of budesonide MMX dispensing per 1000 incident UC cases. We calculated average monthly percentage change (AMPC) in dispensing and failure rates with 95% confidence intervals (CI) by Poisson or negative binomial models. An interaction term tested differences between pre-pandemic rates (prior to April 2020) and pandemic rates (April 2020 to March 2023). We used Cox proportional hazard models to compare budesonide MMX failure before vs during the pandemic, with hazard ratios (HR) and 95%CIs—a sensitivity analysis was done to extend the follow-up time to 90 days. Results Overall, 320 incident UC cases were dispensed budesonide MMX with 30-days follow-up. Of those, 14.06% (95%CI: 10.25, 17.87) received prednisone within 30 days. Mean time to failure was 17 days. There was a significant difference in the AMPC in dispensing rates was observed pre-pandemic vs during the pandemic (p=0.037) (Table 1). After the pandemic onset, budesonide MMX dispensing significantly decreased (AAPC: −2.43%; 95%CI: −3.77, −1.08). For the 30 days, the HR for budesonide MMX failure was 1.92 (95%CI: 0.95, 3.88). When the follow-up was extended to 90 days the HR was significant at 1.68 (95%CI: 1.05, 2.71), suggesting a significantly increased hazard of budesonide MMX failure during the pandemic compared to pre-pandemic. Conclusions Budesonide MMX dispensing was stable pre-pandemic but significantly decreased during. The pandemic may have been associated with an increased failure rate of budesonide MMX—particularly within 90 days—as more patients required prednisone to manage their UC. Analysis of Rates per 1000 Individuals with Incident UC Funding Agencies Ferring Pharmaceuticals
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How this classification was reachedexpand
Direct model labels (unvalidated)
Per-model category and study-design labels from the labeling rounds. They are machine output, unvalidated, and the disagreement between models ships as data. No study design here is MEDLINE-validated yet.
| Model arm | Categories | Study design | Confidence |
|---|---|---|---|
| gemma | no category Domain: not available · Genre: Empirical About the Canadian research system: no · About a Canadian topic: yes | Observational | low |
| gpt | no category Domain: not available · Genre: Empirical About the Canadian research system: no · About a Canadian topic: no | Observational | low |
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 | 0.002 | 0.006 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.001 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.003 | 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, unvalidatedLabeled directly by 2 models reading the full record.
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".