Abstract 14860: Young Women with Stable CHD are More Likely to Develop Myocardial Ischemia with Mental Stress Than Men of Similar Age
Bibliographic record
Abstract
Introduction: Emerging data suggest that young women with coronary heart disease (CHD) are disproportionally vulnerable to the adverse cardiovascular effects of emotional stress. We assessed myocardial ischemia induced by a standardized mental stress protocol to address this question. Hypothesis: Young women (≤55 years) with stable CHD are more likely than men of similar age to develop ischemia with a mental stress test, but not ischemia with a standard exercise or pharmacological stress test. Methods: We studied 534 patients with stable CHD who underwent 99mTc[[Unable to Display Character: ‐]]sestamibi myocardial perfusion imaging at rest and with both mental (speech task) and physical (exercise or pharmacological) stress testing. A summed total severity score was computed to quantify hypoperfusion size and severity at rest and under both stress conditions with observer-independent software. The difference between stress and rest provided a quantitative measure of total ischemic perfusion deficit (...
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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 | 0.000 | 0.000 |
| 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) | 0.005 | 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".