Young maternal age was associated with increased risk of postneonatal death in full term, healthy infants
Bibliographic record
Abstract
Phipps MG, Blume JD, DeMonner SM. Young maternal age associated with increased risk of postneonatal death. Obstet Gynecol2002 ; 100 : 481 –6 [OpenUrl][1][CrossRef][2][PubMed][3][Web of Science][4] QUESTION: Are full term, healthy infants born to young mothers at increased risk of postneonatal death compared with infants born to adult (older) mothers? Cohort study with ≤365 days of follow up. United States. 1 830 350 mothers who were 12–29 years of age and delivered healthy (≥37 wks gestation, birth weight ≥2500 g), singleton infants in the US in 1996 and 1997, who survived the first 28 days after birth. Data sets were racially stratified as non-Hispanic white (1 246 863), non-Hispanic black (303 699), and Mexican-American (279 788). Multiple births, higher order births, and infants with congenital defects were excluded. Maternal age ≤15 years was the main … [1]: {openurl}?query=rft.jtitle%253DObstetrics%2B%2526%2BGynecology%26rft.stitle%253DObstet%2BGynecol%26rft.aulast%253DPhipps%26rft.auinit1%253DM.%2BG.%26rft.volume%253D100%26rft.issue%253D3%26rft.spage%253D481%26rft.epage%253D486%26rft.atitle%253DYoung%2Bmaternal%2Bage%2Bassociated%2Bwith%2Bincreased%2Brisk%2Bof%2Bpostneonatal%2Bdeath.%26rft_id%253Dinfo%253Adoi%252F10.1016%252FS0029-7844%252802%252902172-5%26rft_id%253Dinfo%253Apmid%252F12220767%26rft.genre%253Darticle%26rft_val_fmt%253Dinfo%253Aofi%252Ffmt%253Akev%253Amtx%253Ajournal%26ctx_ver%253DZ39.88-2004%26url_ver%253DZ39.88-2004%26url_ctx_fmt%253Dinfo%253Aofi%252Ffmt%253Akev%253Amtx%253Actx [2]: /lookup/external-ref?access_num=10.1016/S0029-7844(02)02172-5&link_type=DOI [3]: /lookup/external-ref?access_num=12220767&link_type=MED&atom=%2Febnurs%2F6%2F2%2F57.atom [4]: /lookup/external-ref?access_num=000177691500013&link_type=ISI
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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 | 0.001 |
| 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) | 0.003 | 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".