Treatment Variation and Its Association with Survival in Patients Diagnosed with Stage I-III Breast Cancers in Alberta 2002-2010: A Population-Based Study
Bibliographic record
Abstract
Standard treatments for patients with stage I-III breast cancers include 1) breast conserving surgery (BCS) plus adjuvant radiotherapy; 2) mastectomy; and 3) BCS alone (e.g. age > 70 in stage I for ER/PR+ status and received hormone therapy). Currently, there is a lack of information regarding frequency and variation in utilization of these treatments in Alberta and information regarding the survival outcomes achieved in the general population by treatment type and stage. In this study, we found that rural patients were less likely to receive BCS. Stage I-III patients who received BCS plus adjuvant radiotherapy had a lower hazard of overall death and stage II or III patients had a lower hazard of breast-cancer-specific death than those who received mastectomy; additionally, stage I and II patients who received BCS alone had a higher hazard of overall and breast-cancer-specific death. These suggested an inequity of care among Alberta breast cancer patients.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot 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.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.002 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.001 |
| Bibliometrics | 0.001 | 0.002 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.001 | 0.000 |
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.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
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".