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Record W7027561622

Creation of a personalized stroke risk index calculator

2010· dissertation· en· W7027561622 on OpenAlexaff

Bibliographic record

VenueeScholarship@McGill (McGill) · 2010
Typedissertation
Languageen
FieldMedicine
TopicAcute Ischemic Stroke Management
Canadian institutionsMcGill University
Fundersnot available
KeywordsCalculatorStroke (engine)Stroke riskIndex (typography)Regression analysisRisk assessmentProportional hazards model
DOInot available

Abstract

fetched live from OpenAlex

For engaging individuals in reducing personal stroke risk, knowledge about factors that are directly under individual control is relevant. Therefore, the objective was to estimate the risk of first ever stroke for specific combinations of health, lifestyle and psychological related factors. The regression equation, from a Cox proportional hazards model allows for individualized 10-year stroke risk estimates for any profile of included risk factors and the creation of the Personalized Stroke Risk Index Calculator or PSRIC. A total of 17,805 persons were followed in administrative health databases yielding over 230,000 person-years. Over an average of 11 years of follow up, 358 people had a stroke. The risk of stroke for an inactive, 60 year-old diabetic woman, who is currently a heavy smoker and drinker, is 0.7% or approximately 7 times higher than the risk of a healthy 60-year old woman. Future work should be done to validate the PSRIC.

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)0.005
metaresearch head score (Gemma)0.018
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: none
GenreCandidate signal: Methods · Consensus signal: Methods
Teacher disagreement score0.014
Threshold uncertainty score0.047

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0050.018
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0010.001
Bibliometrics0.0020.002
Science and technology studies0.0000.000
Scholarly communication0.0010.001
Open science0.0010.001
Research integrity0.0010.001
Insufficient payload (model declined to judge)0.0140.006

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 head0.010
GPT teacher head0.258
Teacher spread0.248 · 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
GenreMethods

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
Published2010
Admission routes1
Has abstractyes

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