Tuberculosis: 6. Extrapulmonary
Bibliographic record
Abstract
Tuberculosis (TB) is a systemic infection caused by Mycobacterium tubercu-losis. It is transmitted by coughed aerosol and usually presents with respi-ratory symptoms. However, it can produce disease in any organ system. Dissemination from the site of initial infection in the lung can take place at the time of primary infection or years later, when immunologic containment fails. The practitioner should be aware that TB occurs in sites other than the lungs and that these sites account for an increasing proportion of cases of TB in North America.1-4 People born in Asia, Africa, Latin America and Oceania or in aborigi-nal communities of Canada have a high likelihood of infection and a 10 % risk of active disease. Immunosuppression due to age, disease or debility, but most par-ticularly due to HIV infection, increases the risk of reactivation and of unusual presentations of TB5,6 (see subsequent article in this series on TB and HIV).
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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) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.002 | 0.002 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.002 | 0.002 |
| Open science | 0.001 | 0.002 |
| Research integrity | 0.002 | 0.002 |
| Insufficient payload (model declined to judge) | 0.169 | 0.120 |
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".