Vaginal Birth After Cesarean Section: Outcomes of Women Receiving Midwifery Care in Ontario
Bibliographic record
Abstract
Providing care to women with a history of cesarean section is within the scope of practice of Canadian midwives, and midwifery care may be of benefit to women who plan a vaginal birth after cesarean section. This retrospective cohort study describes the birth outcomes of women with a history of cesarean section cared for by a midwife in Ontario between April 1, 2003 and March 31, 2008 (n= 3262). The primary outcome was cesarean section, and the secondary outcome was perinatal mortality. The overall rate of cesarean section in this cohort was 46.1%, but among women who laboured the rate of cesarean section was 28.8%. There was not a statistically significant difference in perinatal mortality (excluding congenital anomalies and stillbirth prior to labour) when women with a history of cesarean section (0.18%) were compared to those without (0.20%), p=0.99. This study demonstrates positive outcomes for both mothers and babies when midwives are primary care providers during the intrapartum period for women with a history of cesarean section. There is a need to explore the factors contributing to the high rate of planned repeat cesarean section in this cohort.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
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 | 0.003 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.002 | 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".