Bone mineral density among β–thalassemic children: age and sex comparative study
Bibliographic record
Abstract
Background Parathyroid function and bone mineral density (BMD) in β–thalassemia major (β-TM) patients are provided. Some recent suggestions are presented about the cellular and structural changes in thalassemia bones. Aim The current work aims to study BMD and related mineral and hormonal profiles in β-TM cases and its relation to the sex and age strata of the patients. Patients and methods The study includes 30 healthy control and 55 β-TM patients who were divided into subgroups according to age and sex. Parathormone (PTH), ferritin, and calcium were investigated. The dual-energy radiography absorptiometry were used to the assessment of BMD. Results Serum ferritin level was as expected significantly elevated in β-TM cases. Serum PTH was significantly lower in β-TM cases when matched with healthy control. Serum calcium was within normal in β-TM. BMD of lumber spine in β-TM was markedly detracted when matched with the healthy normal group. 76% of our cases showed reduced BMD. Conclusion BMD is reduced in 76% of β-TM. PTH is reduced in all age strata of β-TM.
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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 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.002 | 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".