MétaCan
Menu
← all works

Atypical Antipsychotics and Risk of Cerebrovascular Accidents

2004· article· en· 274 citations· W2156065126 on OpenAlex· 10.1176/appi.ajp.161.6.1113

Why is this work in the frame?

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

Canadian affiliationAn author listed a Canadian institution. This is the only route the usual frame has.

Full frame distilled prediction

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.

Candidate categories
none
Consensus categories
none
Domain
Candidate signal: noneConsensus signal: none
Study design
Candidate signal: ObservationalConsensus signal: Observational
Genre
Candidate signal: EmpiricalConsensus signal: Empirical
Teacher disagreement score
0.080
Threshold uncertainty score
0.301
Validation status
machine_predicted_unvalidated · codex-gemma-dda1882f352a

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 communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

Machine scores (provisional)

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

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.

Opus teacher head0.007
GPT teacher head0.282
Teacher spread
0.275 · how far apart the two teachers sit on this one work
Validation status
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Abstract

OBJECTIVE: Randomized controlled trials have suggested that at least one atypical antipsychotic may be associated with an increased risk of stroke in older people with dementia. This study examined the association between atypical antipsychotic use and stroke in the elderly. METHOD: The authors conducted a retrospective population-based cohort study of patients over the age of 66 by linking administrative health care databases. Three cohorts-users of typical antipsychotics, risperidone, and olanzapine-were identified and compared. RESULTS: Subjects treated with typical antipsychotics (N=1,015) were compared with those given risperidone (N=6,964) and olanzapine (N=3,421). Model-based estimates adjusted for covariates hypothesized to be associated with stroke risk revealed relative risk estimates of 1.1 (95% CI=0.5-2.3) for olanzapine and 1.4 (95% CI=0.7-2.8) for risperidone. CONCLUSIONS: Olanzapine and risperidone use were not associated with a statistically significant increased risk of stroke compared with typical antipsychotic use.

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.

The record

Venue
American Journal of Psychiatry
Topic
Schizophrenia research and treatment
Field
Medicine
Canadian institutions
Institute for Clinical Evaluative SciencesUniversity of Toronto
Funders
not available
Keywords
OlanzapineRisperidoneAntipsychoticMedicineAtypical antipsychoticDementiaStroke (engine)PsychiatryPopulationTypical antipsychoticCohortCohort studyRetrospective cohort studyInternal medicinePediatricsSchizophrenia (object-oriented programming)Environmental health
Has abstract in OpenAlex
yes