Maternal and neonatal complications of trial of labor after two cesarean sections (TOLAC-2) compared with repeat cesarean section (RCS-2): Systematic review and meta-analysis
Bibliographic record
Abstract
Title: Maternal and neonatal complications of the trial of labour after two caesarean sections (PPDC-2) versus repeat caesarean section (CR-2): Systematic review and meta-analysis. Background: PPDC-2 is a behavior that is not accepted in all latitudes. Women who want natural childbirth do not receive the opportunity. The objective wasto conduct a systematic review and meta-analysis on the maternal and neonatal complications of PPDC-2 versus CR-2. Methods: The eligibility criteria were: pregnant women of ≥22 weeks, two cesarean sections, cephalic presentation, no contraindications to natural delivery, no fetal malformations who undergo PPDC-2. We searched the libraries PubMed, Scopus, Embase and other websites of organisations linked to Obstetrics and Gynaecology. We assessed risk of bias using the Newcastle-Ottawa Scale. The Synthetic Method was used to summarize and present the results. Results: The number of included articles that met the eligibility criteria was 10, with 3316 participants in the intervention group (PPDC-2) and 54054 in the control group (CR-2). The studies were cohort studies. The average success rate of PPDC-2 was 62.1%. There were no differences in maternal and neonatal complications in most publications. The rate of uterine rupture was very small. Discussion: The information comes from good quality cohort studies (level of evidence 2b). PPDC-2 is a reasonable and relatively safe option, comparable to CR-2. Others: It was financed with own resources, no protocol was carried out and it was not recorded on the basis of systematic reviews.
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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 | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.002 | 0.001 |
| 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".