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Record W1982613130 · doi:10.1136/bmj.38068.716262.f7

Gastrointestinal bleeding after the introduction of COX 2 inhibitors: ecological study

2004· article· en· W1982613130 on OpenAlex
Muhammad Mamdani, David N. Juurlink, Alex Kopp, Gary Naglie, Peter C. Austin, Andreas Laupacis

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.

Bibliographic record

VenueBMJ · 2004
Typearticle
Languageen
FieldMedicine
TopicInflammatory mediators and NSAID effects
Canadian institutionsInstitute for Clinical Evaluative Sciences
Fundersnot available
KeywordsRofecoxibMedicineFormularyCelecoxibProportional hazards modelPopulationMedical prescriptionGastrointestinal bleedingInternal medicinePharmacologyCyclooxygenaseEnvironmental healthBiology

Abstract

fetched live from OpenAlex

Recent evidence suggests a lower risk of upper gastrointestinal haemorrhage for selective cyclooxygenase-2 (COX 2) inhibitors compared with non-selective non-steroidal anti-inflammatory drugs (NSAIDs) at the patient level, 1-3 although COX 2 inhibitors are likely not devoid of gastrointestinal toxicity. At the population level, however, the widespread proliferation of COX 2 inhibitors might lead to an increase in the overall numbers of people exposed to anti-inflammatory drugs with uncertain implications on rates of population-wide gastrointestinal events. We did an ecological study to examine temporal changes in the use of NSAIDs and upper gastrointestinal haemorrhage hospitalisation rates among a population of older individuals after the introduction of COX 2 inhibitors.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.001
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.036
Threshold uncertainty score0.209

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

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.

Opus teacher head0.011
GPT teacher head0.276
Teacher spread0.264 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it