The influence of APOE status on cognitive decline
Bibliographic record
Abstract
Abstract INTRODUCTION Apolipoprotein (APOE) ε4 and subjective cognitive decline (SCD) increase risk of Alzheimer’s disease. However, few studies have examined the relationship between SCD and APOE, especially using longitudinal data. The current study examined whether APOE is associated with the rate of cognitive change in SCD. METHODS Linear mixed effects models examined the relationship between APOE status and cognitive change in older adults with SCD (SCD), normal controls (NC), and people with mild cognitive impairment (MCI). RESULTS The presence of at least one ε2 allele in SCD and MCI results in cognitive change rates similar to a NC with the ε3ε3 genotype. Older SCD-ε4 individuals exhibited increased cognitive decline compared to all groups, including NC-ε4 and MCI-ε4. DISCUSSION People with SCD with at least one ε4 allele will experience increased cognitive decline compared to cognitively healthy older adults and people with MCI. These findings have important implications for treatments and interventions.
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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 | 0.003 | 0.013 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.001 |
| Bibliometrics | 0.001 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.003 | 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".