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Record W2625462019 · doi:10.1080/09546634.2017.1343435

Defining treatment success in rosacea as ‘clear’ may provide multiple patient benefits: results of a pooled analysis

2017· article· en· W2625462019 on OpenAlexaff
Guy Webster, Martin Schaller, Jerry Tan, J. Mark Jackson, Nabil Kerrouche, Gregor Schäfer

Bibliographic record

VenueJournal of Dermatological Treatment · 2017
Typearticle
Languageen
FieldMedicine
TopicAcne and Rosacea Treatments and Effects
Canadian institutionsWindsor Clinical ResearchWestern University
FundersGalderma
KeywordsRosaceaMedicineDermatology Life Quality IndexInternal medicineRandomized controlled trialQuality of life (healthcare)MetronidazoleClinical endpointDermatologyGastroenterologyAcne

Abstract

fetched live from OpenAlex

BACKGROUND: Rosacea treatment success is usually defined as a score of 1 ('almost clear') or 0 ('clear') on the 5-point Investigator Global Assessment (IGA) scale. OBJECTIVE: To evaluate whether, after successful treatment, 'clear' subjects had better outcomes than 'almost clear' subjects. METHODS: A pooled analysis was performed on 1366 rosacea subjects from four randomized controlled trials with IGA before and after treatment (ivermectin, metronidazole or vehicle). Assessments included the Dermatology Life Quality Index (DLQI) questionnaire and subject assessment of rosacea improvement. In one trial, patients were followed after the treatment period to measure time to relapse (IGA score ≥2). RESULTS: At end of treatment, more 'clear' than 'almost clear' subjects had a clinically meaningful difference in DLQI (59% vs. 44%; p < .001) and a final DLQI score of 0-1 indicating no effect on quality of life (84% vs. 66%; p < .001). More 'clear' subjects reported an 'excellent' improvement in their rosacea (77% vs. 42%; p < .001). The median time to relapse was more than 8 months for 'clear' vs. 3 months for 'almost clear' subjects (p < .0001). CONCLUSIONS: Achieving an endpoint of 'clear' (IGA 0) vs. 'almost clear' (IGA 1) is associated with multiple positive patient outcomes, including delayed time to relapse.

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)0.044
metaresearch head score (Gemma)0.052
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: Meta-analysis
GenreCandidate signal: Empirical · Consensus signal: none
Teacher disagreement score0.044
Threshold uncertainty score0.232

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0440.052
Meta-epidemiology (narrow)0.0040.001
Meta-epidemiology (broad)0.0160.047
Bibliometrics0.0030.003
Science and technology studies0.0000.001
Scholarly communication0.0030.002
Open science0.0010.002
Research integrity0.0030.002
Insufficient payload (model declined to judge)0.0050.000

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 head0.028
GPT teacher head0.317
Teacher spread0.289 · 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
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

Citations36
Published2017
Admission routes1
Has abstractyes

Explore more

Same venueJournal of Dermatological TreatmentSame topicAcne and Rosacea Treatments and EffectsFrench-language works237,207