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A post-hoc analysis

2011· article· en· W2773926170 on OpenAlex

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

VenueInflammatory Bowel Diseases · 2011
Typearticle
Languageen
FieldArts and Humanities
TopicContemporary Literature and Criticism
Canadian institutionsRobarts Clinical Trials
Fundersnot available
KeywordsPost-hoc analysisPost hocMedicineComputer scienceInternal medicine

Abstract

fetched live from OpenAlex

To assess whether there is an association between degree of mucosal healing (MH) at wk 8 and clinical outcomes in patients with moderate-to-severe ulcerative colitis (UC) in ACT1 and ACT2. MH at wk 8 was assessed using the Mayo endoscopic subscore classification (0-normal, 1-mild, 2-moderate, 3-severe disease). A post-hoc log-rank test was used to examine the distribution of time to colectomy through wk 54 across the 4 endoscopy subgroups for IFX and PBO-treated patients, respectively (ACT 1 and ACT 2 combined). The proportion of patients with corticosteroid-free (CS-F) status and CS-F symptomatic remission (stool frequency score of 0/1 and a rectal bleeding score of 0) were assessed at wk 30 (ACT 1 and ACT 2 combined) and at wk 54 (ACT 1). IFX patients who showed endoscopic improvement at wk 8 were less likely to progress to colectomy through wk 54 (Table; p = 0.0004). Small event numbers in PBO patients precluded a clear conclusion for PBO. Among those receiving corticosteroids prior to starting IFX-treatment, patients were more likely to be CS-F at wk 30 as their degree of MH improved at wk 8 (62% (0); 46% (1); 20% (2); 10% (3), p<0.0001). IFX patients with lower endoscopy scores at wk 8 were more likely to be in CS-F symptomatic remission at wk 30 (46% (0); 34% (1); 11% (2); 6.4% (3), p<0.0001). Similar trends in the attainment of a CS-F status and CS-F symptomatic remission were observed at wk 54 for IFX patients in ACT 1. Although a lower proportion of PBO patients became CS-F or achieved CS-F symptomatic remission vs IFX patients, similar trends of improved outcomes at wks 30 and 54 were associated with the degree of MH attained by PBO patients at wk 8.

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)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesInsufficient payload (model declined to judge)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Theoretical or conceptual · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.909
Threshold uncertainty score0.989

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.001
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0110.000

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 head0.020
GPT teacher head0.208
Teacher spread0.188 · 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