Folic acid supplementation does not decrease stillbirths and congenital malformations in a guide dog colony
Bibliographic record
Abstract
OBJECTIVES: To investigate if maternal folic acid supplementation (5 mg) is associated with a reduction of cleft palates, umbilical hernias, stillbirths and caesarean sections in a guide dog breeding colony. MATERIALS AND METHODS: Labrador retrievers, golden retrievers and Labrador/golden Crosses from the breeding colony of a professional guide dog training organisation were eligible for inclusion. Dams in the treatment group (n = 137) received 5 mg oral folic acid supplementation daily from the start of pro-oestrous through day 40 of gestation. A historical control group (n = 134) was selected from the previous calendar year for comparison. A logistic regression model identified the relative risk of disease (cleft palates, umbilical hernias, stillbirths and caesarean sections) for puppies whose dams did or did not receive folic acid supplementation. RESULTS: A total of 1917 puppies (890 control, 1027 treatment; from 294 litters) were produced during the entire study period, with 994 puppies (494 control, 500 treatment; from 144 litters) born to the subset of dams (n = 72) who produced litters during both the control and treatment periods. All 95% highest posterior densities of relative risk included 1.0, failing to detect differences between the treatment and control groups on incidence rate of cleft palate (control: 2.25%; treatment: 2.34%), umbilical hernias (control: 1.91%; treatment: 3.12%), stillbirths (control: 3.26%; treatment: 2.92%) and caesarean sections (control: 1.45%; treatment: 1.28%). CLINICAL SIGNIFICANCE: There was no observable reduction of cleft palate, umbilical hernia, stillbirth or caesarean section associated with folic acid supplementation during pregnancy in the study colony. For a domestic dog cohort with a low tendency of hereditary malformations, such as this study colony, 5 mg dietary folic acid supplementation should not be expected to drastically improve or eradicate these diseases.
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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 | 0.005 |
| 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 | 0.001 |
| 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".