Observed Specific Pattern of cognitive impairment in patients with Mild Traumatic Brain Injury: a prospective study of 35 patients (P7.181)
Bibliographic record
Abstract
Objective: To identify the incidence and pattern of cognitive impairments in patients following mild traumatic brain injury. Background: Patients of mild traumatic brain injury (mTBI) are usually discharged from the ER without the advice to follow-up with a specialist in absence of overt physical symptoms. MTBI can cause a wide range of functional and cognitive deficits that can significantly affect the quality of life. Methods: In past 12 months 35 patients (F: M = 17:18) presented at our center for the treatment of persistent symptoms following mTBI. Mean age was 41 years (range 19-72 years) and the mean period elapsed after mTBI was 19 months. Majority presented with persistent headaches, vertigo and seizures but only 4(8.7[percnt]) subjectively complained of memory loss. Patients were screened for cognitive impairment with Montreal Cognitive Assessment (MoCA) followed by Wechsler Memory Scale assessment (WMS-IV), WMS-IV assesses the auditory, visual, immediate and delayed recall memories in detail. Patients are allotted index score in each modality. A score of 100 is considered average. Results: 19 patients (54[percnt]) had abnormal MoCA scores (<27). The mean score for auditory, visual, visual working, immediate recall and delayed recall memories were 85, 75, 76, 81 and 75 respectively that are in the bottom 25th percentile for all modalities. Visual memory and the delayed recall memory (11th percentiles) are the most affected cognitive functions followed by the working visual memory (13th percentile). Auditory memory (22 percentile) was the least affected cognitive modality. Conclusion: A majority of MTBI patients continue to suffer from occult cognitive impairment long after the initial injury. Impairment of Visual memory and delayed recall (V-DIP) is the significant pattern seen in patients with mTBI. Patients with mTBI with persistent symptoms after 4 weeks should have assessment of cognitive functioning as a standard protocol with specific emphasis on V-DIP.
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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) | 0.001 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.000 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.003 | 0.001 |
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".