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Record W7132996013

Care of ruptured abdominal aortic aneurysms in Ontario

2003· dissertation· W7132996013 on OpenAlexaboutno aff
Andrew Dueck

Bibliographic record

VenueTSpace · 2003
Typedissertation
Language
FieldMedicine
TopicAortic aneurysm repair treatments
Canadian institutionsnot available
Fundersnot available
KeywordsAbdominal aortic aneurysmComorbidityRetrospective cohort studyCohortCohort studyAneurysmRisk factorPopulation
DOInot available

Abstract

fetched live from OpenAlex

The purpose of this population based retrospective cohort study was to determine the impact of patient, surgeon and hospital factors upon survival after repair of ruptured abdominal aortic aneurysms (AAAs). When risk factors following ruptured and elective AAA repair were compared, patient factors such as age and comorbidity were found to be less important following ruptured abdominal aortic aneurysm (AAA) repair. Variables identified as risk factors were examined to see if they changed over the study period. Average surgeon volume and the proportion of surgeons with vascular surgery training increased over the study period, both of which favour lower mortality. However mortality was unchanged over the study period, perhaps partly due to the fact that average patient age increased over the study period. Men had superior survival to women following repair of a ruptured AAA, and were also more likely to receive a repair.

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.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not 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.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.001
Version: metacan-v3-hybrid-931329e0061cValidation 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 score0.115
Threshold uncertainty score0.232

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.001
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.001
Science and technology studies0.0020.000
Scholarly communication0.0010.000
Open science0.0000.001
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0020.000

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 head0.017
GPT teacher head0.319
Teacher spread0.303 · 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

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designObservational
Domainnot available
GenreEmpirical

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".

Quick stats

Citations0
Published2003
Admission routes1
Has abstractyes

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