Incidence, Age and Gender of Subjects With the Calcium Pyrophosphate Deposition Around the Dens, and Clinical Characteristics of Patients With Crowned Dens Syndrome
Bibliographic record
Abstract
Background: The purpose of this study was to determine the incidence, age distribution and gender of subjects with the calcifications around the dens, and to reveal the clinical, biochemical and radiological characteristics for crowned dens syndrome (CDS). Methods: We retrospectively picked up the subjects with the calcification around the dens among patients who had undergone head and neck computed tomography (CT) between October 1, 2011 and March 31, 2012, and investigated age and gender of selected subjects. We also studied age, gender, clinical symptoms, body temperature, C-reactive protein (CRP) levels, treatment and clinical course in patients who were diagnosed as having CDS. Results: We detected 1,056 subjects who had undergone head and neck CT, and excluded subjects who had undergone repeated CT, and also excluded patients whose CT did not show odontoid process. Three hundred sixty-five subjects were eligible for the analysis. In all subjects, age in subjects with the calcifications around the dens was significantly higher than subjects without the calcifications around the dens. In subjects who were over 65 years old, age in subjects with the calcifications around the dens was also significantly higher than subjects without the calcifications around the dens. Twenty-one (5.8%) of 365 subjects showed the calcifications around the dens. We found the calcifications around the dens in 9.6% of subjects who were over 65 years old. In the analysis of characteristics of CDS patients, we found that all patients presented neck pain, restricted neck rotation, fever, elevated CRP levels, the calcification around the dens detected by CT, and the prompt response to steroid and/or non-steroidal anti-inflammatory drugs. Conclusion: To our knowledge, our study is the first to show the frequency of the calcification around the dens in the elderly people, and also a significant association between the calcification around the dens and aging. Clinical, biochemical and radiological characteristics for CDS obtained from our study help many physicians make the diagnosis of CDS. J Endocrinol Metab. 2016;6(5):143-148 doi: http://dx.doi.org/10.14740/jem372e
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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 | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 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 teacher head, 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".