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Atypical antipsychotic drugs in the treatment of behavioural and psychological symptoms of dementia: systematic review

2004· review· en· 226 citations· W2161560323 on OpenAlex· 10.1136/bmj.38125.465579.55

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.
Canadian funderA Canadian agency funded it. The work may carry no Canadian affiliation at all.

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: Systematic reviewConsensus signal: Systematic review
Genre
Candidate signal: ReviewConsensus signal: Review
Teacher disagreement score
0.060
Threshold uncertainty score
0.587
Validation status
machine_predicted_unvalidated · codex-gemma-dda1882f352a

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0030.001
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 head0.120
GPT teacher head0.449
Teacher spread
0.329 · 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: To review the role of oral atypical antipsychotic drugs in the management of the behavioural and psychological symptoms of dementia (BPSD). DATA SOURCES: Medline, Embase, and the Cochrane Library. Reference lists were reviewed and experts were contacted to identify additional trials. STUDY SELECTION: Double blind randomised controlled trials that evaluated the four oral atypical antipsychotic therapies for BPSD. REVIEW METHODS: Two reviewers assessed trial validity independently. DATA EXTRACTION: Demographics of patients, study duration, dose of antipsychotic, primary end points, adverse events. RESULTS: 77 abstracts were reviewed. Five randomised trials (1570 patients) evaluating risperidone and olanzapine were identified. The quality of trials was generally good. Most participants were in an institution (> 96%), elderly (weighted mean 82.3 years), and had Alzheimer's disease (76.3%). Trials lasted 6-12 weeks. Treatment with atypical antipsychotic drugs was superior to placebo for the primary end point in three of the five trials. Two trials comparing risperidone with haloperidol did not find any differences in the primary measures of efficacy. Adverse events were common and included extrapyramidal symptoms, somnolence, and abnormal gait. CONCLUSIONS: Although atypical antipsychotic drugs are being used with increasing frequency, few randomised trials have evaluated their use for BPSD. Limited evidence supports the perception of improved efficacy and adverse event profiles compared with typical antipsychotic drugs.

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
BMJ
Topic
Dementia and Cognitive Impairment Research
Field
Medicine
Canadian institutions
Baycrest HospitalUniversity of TorontoInstitute for Clinical Evaluative Sciences
Funders
Canadian Institutes of Health ResearchKidney Foundation of CanadaCanadian Diabetes AssociationEli Lilly CanadaHeart and Stroke Foundation of CanadaEli Lilly and Company
Keywords
MedicineRisperidoneAntipsychoticOlanzapineAdverse effectDementiaQuetiapinePlaceboClinical trialPsychiatryCochrane LibraryAtypical antipsychoticExtrapyramidal symptomsRandomized controlled trialInternal medicineDiseaseSchizophrenia (object-oriented programming)Alternative medicinePathology
Has abstract in OpenAlex
yes