The impact of the 1998 Quebec ice storm on pregnant women's hormonal reactions /
Bibliographic record
Abstract
Objectives. To determine the relationship between objective stress, subjective reaction, post-traumatic stress disorder (PTSD) symptoms and cortisol in pregnant women exposed to a natural disaster. Methods. The Impact of Event Scale-Revised (IES-R) was used to measure PTSD symptoms in 193 subjects, and a Storm Questionnaire to assess objective and subjective stress. Seven salivary cortisol samples were collected from each subject; six were obtained between waking and bedtime on the first day, and then a seventh upon waking on the second day. Results. Both objective stress and subjective reactions to the storm negatively predict cortisol, but size and significance of the effects vary according to trimesters of stress exposure. Across the four pregnancy groups, up to 42% of the variance in cortisol could be explained by objective stress and subjective reactions. Conclusion. More severe PTSD symptoms are associated with lower cortisol levels, and pregnancy dampens a woman's physiological response to stress.
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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) | 0.004 | 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".