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Record W1908099264 · doi:10.1002/14651858.cd007186

Blood pressure lowering efficacy of calcium-channel blockers as second-line therapy for primary hypertension

2008· article· en· W1908099264 on OpenAlexaff
Jenny MH Chen, Balraj S Heran, Marco I Perez, James M Wright

Bibliographic record

VenueCochrane Database of Systematic Reviews · 2008
Typearticle
Languageen
FieldMedicine
TopicBlood Pressure and Hypertension Studies
Canadian institutionsUniversity of British Columbia
Fundersnot available
KeywordsBlood pressureMedicineCalcium channel blockerNifedipineCardiologyAdverse effectPulse pressureInternal medicineHeart rateCalcium

Abstract

fetched live from OpenAlex

This is a protocol for a Cochrane Review (Intervention). The objectives are as follows: Primary objective: To quantify the additional reduction in systolic blood pressure (SBP) and diastolic blood pressure (DBP) of calcium‐channel blocker (CCB) therapy as a second‐line drug in hypertensive patients. Secondary objectives: 1. To determine the effects of second‐line CCB on variability of blood pressure. 2. To determine the effects of second‐line CCB on pulse pressure. 3. To quantify the effect of second‐line CCB on heart rate. 4. To quantify the effect of second‐line CCB on withdrawals due to adverse effects.

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)0.023
metaresearch head score (Gemma)0.062
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Meta-analysis · Consensus signal: none
GenreCandidate signal: Review · Consensus signal: none
Teacher disagreement score0.037
Threshold uncertainty score0.122

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0230.062
Meta-epidemiology (narrow)0.0030.002
Meta-epidemiology (broad)0.0110.012
Bibliometrics0.0110.009
Science and technology studies0.0020.001
Scholarly communication0.0040.003
Open science0.0030.002
Research integrity0.0040.003
Insufficient payload (model declined to judge)0.0370.003

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 head0.113
GPT teacher head0.335
Teacher spread0.222 · 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 designMeta-analysis
Domainnot available
GenreReview

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

Citations2
Published2008
Admission routes1
Has abstractyes

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