P1‐280: COGNITIVE AND BEHAVIORAL CHANGES AFTER FIRST STROKE
Bibliographic record
Abstract
Stroke is a risk factor for dementia. Among 30% of patients who had a stroke develop post stroke dementia within the first year. Post- stroke cognitive impairment prevalence is around 20 to 80% according to different series. After stroke, mood and behavioral changes are also frequent. Symptoms of depression occur in up to one third of patients beginning within the first three months after stroke. The purpose of this study was to evaluate cognitive, mood and behavioral changes after first stroke. First stroke patients were included according to inclusion/ exclusion criteria during a period of 1 year. All were evaluated with the screening test Montreal Cognitive Assessment (MoCA), Beck Depression Inventory (BDI) test and Neuropsychiatric Inventory (NPI)–Questionnaire within the first three months after stroke. Thirty one patients were recruited. Mean age was 60.16±16.28 years, mean number of years of education was 10±3.49 years and 20 (64.5%) were male. MoCA score ≤25 was found in 13(41.9%) subjects. Three (9.6%) patients reported depression symptoms by BDI. Behavioral symptoms were reported by NPI in 24(77.4%) patients: agitation/aggression 11(45.8%), depression/dysphoria 11(45.8%), nighttime behaviors 11 (45.8%), anxiety 10(41.6%), irritability/lability 9(37.5%). Our patients presented similar prevalence of post stroke cognitive impairment as the described in the literature. Despite the small number of the sample, a high prevalence of neuropsychiatric symptoms reported by family members was observed. Particularly, depression presented a low score in the BDI, with a high prevalence in NPI. We will continue extending the sample in order to corroborate these or other results as well as to improve the quality of life in this frequent entity. References: Barbay, M., et al. “Vascular cognitive impairment: Advances and trends.” Revue neurologique 173.7-8 (2017): 473-480. Gupta, Meena, et al. “Behavioural and psychological symptoms in poststroke vascular cognitive impairment.” Behavioural neurology 2014 (2014). Robinson, Robert G., and Ricardo E. Jorge. “Post-stroke depression: a review.” American Journal of Psychiatry 173.3 (2015): 221-231. Sun, Jia-Hao, Lan Tan, and Jin-Tai Yu. “Post-stroke cognitive impairment: epidemiology, mechanisms and management.” Annals of translational medicine 2.8 (2014).
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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 | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.007 | 0.002 |
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".