Identificação do Helicobacter pylori pela citologia do escovado gástrico: comparação com o método histológico
Bibliographic record
Abstract
The purpose of this study was to verify the efficacy of brush gastric cytology for diagnosis of Helicobacter pylori infection in patients, submitted to elective gastroscopy, compared to the method of endoscopic histology. Endoscopy was performed on 157 patients, divided into two dyspeptic groups: group A (n = 27) with duodenal ulcer; and group B (n = 130) without ulcer. In group A, the percentage of positive cases detected by brush cytology (77.8%) was similar to histology (74.1%; p = 0.3). While in group B, brush cytology (71.5%) was superior to histology (63.1%; p = 0.00002). Brush cytology is a simple and useful diagnostic method. It was efficient for identification of Helicobacter pylori infection in both groups.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.002 | 0.002 |
| Meta-epidemiology (narrow) | 0.002 | 0.002 |
| Meta-epidemiology (broad) | 0.005 | 0.002 |
| Bibliometrics | 0.001 | 0.002 |
| Science and technology studies | 0.001 | 0.004 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.002 | 0.001 |
| Research integrity | 0.002 | 0.006 |
| Insufficient payload (model declined to judge) | 0.003 | 0.003 |
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.
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; both teacher heads agree on what is shown here.
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".