Factors associated with elective termination of pregnancy among Canadian and American women with nausea and vomiting of pregnancy
Bibliographic record
Abstract
Case reports have associated severe nausea and vomiting of pregnancy (NVP) with elective termination of pregnancy. Therefore, our objective was to explore the determinants of consideration of termination and actual termination of pregnancy among women with NVP. From 1996 to 1997, callers to an advertised NVP Healthline underwent a semi-structured interview. From callers who retrospectively reported on NVP in a previous pregnancy, a nested unmatched case-control study was performed. Callers were divided into three groups: those who reported having electively terminated their pregnancy due to NVP, those who considered termination due to NVP and those who never considered termination. The severity of nausea and vomiting, and frequency of psychosocial morbidity, were compared between cases and controls, and multivariate logistic regression analysis was used to determine factors independently associated with termination and/or consideration of termination of pregnancy due to NVP. Of 3201 callers with NVP, 413 women reported having considered termination of pregnancy for NVP, 108 reported termination due to NVP and 2609 reported never having considered termination for NVP. The following factors were independently associated with a woman's consideration of termination of pregnancy due to NVP: unplanned pregnancy (p = 0.002), multiparity (p = 0.0001), more severe vomiting (p = 0.003), feelings of depression (p < 0.0001) and reported adverse effects of NVP on both her partner's daily life (p = 0.04) and her relationship with her partner (p = 0.0003). The following factors were independently associated with actual termination of pregnancy due to NVP: unplanned pregnancy (p < 0.0001), multiparity (p = 0.03) and feelings of depression (p = 0.001). There were no significant interactions between factors. Consideration of termination, or actual termination of pregnancy, due to NVP are associated with psychosocial circumstances, which should be taken into consideration when managing these women.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.004 |
| 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 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 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 teacher head, 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".