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Record W1987001026 · doi:10.1002/sim.3882

The analysis of treatment effects for recurring episodic conditions

2010· article· en· W1987001026 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.
fundA Canadian funder is recorded on the work.

Bibliographic record

VenueStatistics in Medicine · 2010
Typearticle
Languageen
FieldMathematics
TopicStatistical Methods and Bayesian Inference
Canadian institutionsUniversity of WaterlooMcMaster University
FundersCanadian Institutes of Health Research
KeywordsMedicineRandomized controlled trialMigraineDiseaseNeurologyClinical trialAsthmaChronic MigraineIntensive care medicinePediatricsPsychiatryInternal medicine

Abstract

fetched live from OpenAlex

Many chronic disease processes feature acute episodic conditions which warrant therapeutic intervention to alleviate symptoms or reduce the risk of further complications. Examples of such disease processes arise in fields such as neurology, where migraineurs experience recurrent attacks of migraine, and respirology, where patients suffering from asthma, cystic fibrosis, or chronic obstructive pulmonary disease may experience recurrent exacerbations. In randomized clinical trials, patients suffering from diseases of this sort are often randomized to one of several treatments and followed over a fixed period of time, during which any episodes are treated with the assigned treatment. When the outcome of interest is a response to treatment at each episode, the data have a similar structure to longitudinal data from studies with prescheduled follow-up assessments, and it is commonplace for analyses to be based on the corresponding methodology. However, this approach ignores the fact that the timing of episodes, and hence the number observed in any given period, is stochastic. In this tutorial we demonstrate the biases that result from naive analyses, discuss analyses that account for the complete stochastic nature, and use a recent migraine trial for illustration. We conclude with some considerations for the design of randomized trials where the unit of analysis is the episode rather than the patient.

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)0.013
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMetaresearch
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Theoretical or conceptual · Consensus signal: Theoretical or conceptual
GenreCandidate signal: Methods · Consensus signal: Methods
Teacher disagreement score0.160
Threshold uncertainty score0.995

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.013
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 head0.046
GPT teacher head0.444
Teacher spread0.398 · 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