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Record W2153003711 · doi:10.1093/cid/cit333

A Primer on Performing Systematic Reviews and Meta-analyses

2013· article· en· W2153003711 on OpenAlexaff
Craig A. Umscheid

Bibliographic record

VenueClinical Infectious Diseases · 2013
Typearticle
Languageen
FieldDecision Sciences
TopicMeta-analysis and systematic reviews
Canadian institutionsInstitute of Health Economics
FundersAgency for Healthcare Research and QualityCenters for Disease Control and PreventionUniversity of Pennsylvania Health SystemUniversity of Pennsylvania
KeywordsSystematic reviewMedicineFormularyMEDLINEResource (disambiguation)Alternative medicineQuality (philosophy)Set (abstract data type)Management scienceMedical educationFamily medicineComputer sciencePolitical sciencePathologyEngineering

Abstract

fetched live from OpenAlex

The number of systematic reviews published in the peer-reviewed literature has increased dramatically in the last decade, and for good reason. They have become an essential resource for clinicians who want unbiased and current answers for their clinical questions; researchers and funders who want to identify the most critical evidence gaps for study; payers and administrators who want to make coverage, formulary, and purchasing decisions; and policymakers who want to develop quality measures and clinical guidelines. Targeted to beginners interested in conducting their own systematic reviews and users of systematic reviews looking for a brief introduction, this primer (1) highlights the differences between review types; (2) outlines the major steps in performing a systematic review; and (3) offers a set of resources to help authors perform and report valid and actionable systematic reviews.

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)0.387
metaresearch head score (Gemma)0.565
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesMetaresearch
Consensus categoriesMetaresearch
DomainCandidate signal: Methods · Consensus signal: none
Study designCandidate signal: Not applicable · Consensus signal: Not applicable
GenreCandidate signal: Methods · Consensus signal: Methods
Teacher disagreement score0.613
Threshold uncertainty score0.756

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.3870.565
Meta-epidemiology (narrow)0.0060.010
Meta-epidemiology (broad)0.0080.010
Bibliometrics0.0270.028
Science and technology studies0.0040.011
Scholarly communication0.0220.033
Open science0.0090.015
Research integrity0.0190.036
Insufficient payload (model declined to judge)0.0250.028

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 head0.910
GPT teacher head0.640
Teacher spread0.271 · 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; the direct Gemma label and the distilled Codex classifier agree on what is shown here.

Study designNot applicable
DomainMethods
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

Citations30
Published2013
Admission routes1
Has abstractyes

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