Tympanocentesis results of a Canadian pediatric myringotomy population, 2008 to 2010.
Bibliographic record
Abstract
OBJECTIVE: This study was completed to evaluate the middle ear microbiology of a pediatric population with chronic otitis media with effusion and to determine if there has been a change in the spectrum of microorganisms or their antibiotic susceptibility in the modern age of antibiotic therapy. DESIGN: Retrospective chart review. SETTING: A Canadian academic pediatric otolaryngology practice. METHODS: This study includes all consecutive patients under the care of one pediatric otolaryngologist undergoing myringotomy and tube placement between the dates of September 2008 and August 2010. Tympanocentesis was performed on each middle ear immediately following the myringotomy, and the specimen was sent for microbiologic analysis. MAIN OUTCOME MEASURES: Culture results and sensitivities were compared to previous similar studies. RESULTS: A total of 246 children (average age of 4 ± 3 years) and 506 ears had culture results as follows: normal flora, 47%; no growth, 35%; Haemophilus influenzae, 9%; Streptococcus pneumoniae, 4%; Moraxella catarrhalis, 3%; and Staphylococcus aureus, 2%. Ten of the 11 S. aureus cultures were methicillin resistant. The rate of pathogenicity decreased from 36.5% in children aged < 4 years to 15.3% in children aged 4+ years (p = .001). CONCLUSION: H. influenzae continues to lead as the most common pathogen; however, S. aureus is increasing in frequency. Pathogenicity decreases with age and appears to be lower in children with a cleft palate.
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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 | 0.000 | 0.002 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.002 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| 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".