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Record W2329908191 · doi:10.2482/haigan.41.299

The Efficacy of Lung Cancer Screening in Miyagi Prefecture, Japan: A Comparison of 2 Case-Control Studies Conducted in the 1980s and in the 1990s.

2001· article· en· W2329908191 on OpenAlexaff
Motoyasu Sagawa, Yasuki Saito, Masami Sato, Satomi Takahashi, Katsuo Usuda, Akira Sakurada, Chiaki Endo, Hiroto Takahashi, Takashi Kondo, Tsutomu Sakuma

Bibliographic record

VenueHaigan · 2001
Typearticle
Languageen
FieldMedicine
TopicLung Cancer Diagnosis and Treatment
Canadian institutionsInstitute of Aging
Fundersnot available
KeywordsLung cancerSelection (genetic algorithm)Selection biasMedicineOncologyDemographyInternal medicineStatisticsComputer scienceMathematicsPathologyArtificial intelligenceSociology

Abstract

fetched live from OpenAlex

1980年代と1990年代の2つの症例対照研究を較べることによって, それぞれの時代の肺癌集検の死亡リスク減少効果を比較検討した. 前期は62セット, 後期は328セットで解析を行ない, 喫煙訂正オッズ比はそれぞれ0.55, 0.54であった. 後期の対象の一部を前期のそれに類似させるとオッズ比は0.27-0.46とやや低下した. これにはSelf-selection biasと診断治療水準の向上が関与している可能性が示唆された. また, 検討した2つの研究はいずれも良好なオッズ比を示したことから, Self-selection biasがどちらの方向に影響しようが, 肺がん集検を受診することにより肺がんの死亡リスクは減少すると考えられた.

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)0.015
metaresearch head score (Gemma)0.029
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesMeta-epidemiology (broad)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.999
Threshold uncertainty score0.078

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0150.029
Meta-epidemiology (narrow)0.0000.001
Meta-epidemiology (broad)0.0010.002
Bibliometrics0.0030.002
Science and technology studies0.0010.001
Scholarly communication0.0010.001
Open science0.0010.001
Research integrity0.0010.001
Insufficient payload (model declined to judge)0.0010.000

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 head0.047
GPT teacher head0.378
Teacher spread0.331 · 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.

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
Published2001
Admission routes1
Has abstractyes

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