Birth by Caesarean section and female offspring’s risk of Caesarean section delivery
Bibliographic record
Abstract
BACKGROUND: The objective of this study was to examine the association of birth by Caesarean section (CS) with female offspring's risk of CS delivery. METHODS: We used data from the 3G Multigenerational Cohort, which includes women whose births and their own subsequent pregnancies and deliveries were recorded in the population-based Nova Scotia Atlee Perinatal Database. The current analysis was limited to the women's first delivery (n = 23,605). Confounding variables were identified using a directed acyclic graph. The association between birth by CS and later CS delivery was examined with Poisson regression adjusted for confounding variables. RESULTS: Seventeen percent of women were born via CS, and 23 % delivered by CS. Compared to women born vaginally, women born by CS had an adjusted relative risk (RR) of 1.36 (95 % confidence interval [CI] 1.30, 1.43) for delivering by CS. Restricting the sample to women born to nulliparous mothers did not change the association (RR 1.35), while restriction to women born out of low-risk pregnancies weakened it slightly (RR 1.25). CONCLUSIONS: Birth by CS is associated with a 36 % increased risk of women delivering their first child by CS. This increase is likely due to shared medical and socio-cultural factors.
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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 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 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) | 0.000 | 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".