Bibliographic record
Abstract
Objective: To compare low birth weight (LBW) (< 2,500g) between infants born to adolescent and adult mothers in Iquitos, Peru. Methods: A random sample of 4,467 birth records was collected. Multivariate analyses were performed to compare both the proportion of LBW and mean birth weight of newborns of adolescents (10-14 yrs, 15-19 yrs) and adults (≥ 20 yrs) and then for primiparous mothers only. Results: For all mothers, all adolescents had significantly greater odds of having a LBW infant than adults. For primiparous mothers, the same was true only for 10-14 year-olds. There were significant differences in mean birth weight between adults and both early and late adolescent age groups. Discussion: Results provide evidence for increased risk of LBW in adolescents, especially early adolescents. Further research is needed on elucidating the basis of this disparity, especially in terms of physiological and behavioural determinants.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.003 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 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) | 0.001 | 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 source (direct Gemma or distilled Codex), 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".