And the Risk of Low Birth Weight
Bibliographic record
Abstract
who have cohabited by age 25 has in-c reased: An estimated 3 % of females born in 1940–1944 had cohabited before age 25, c o m p a red with 37 % of those born in 1 9 6 0 – 1 9 6 4.4 In 1995, 10–11 % of women aged 20–29 were currently cohabiting.5 A l-though re s e a rch on the birth outcomes of U.S. women generally has not considere d cohabitation, studies in other countries suggest that the birth outcomes of cohab-iting women may differ from those of other unmarried women. Researchers in M o n t real, Canada, found that, after ad-justment for confounding variables, in-fants of unmarried women living alone w e re at greater risk of low birth weight than those of married women living with their husbands, but the risk of low birth weight among infants of unmarried women living with a partner and of un-married women living with another adult did not significantly differ from infants of married women.6 A study in Finland found that, adjusting for other factors, low birth weight, preterm delivery and peri-Sheryl Thorburn Bird is a re s e a rch associate with the Cen-
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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 | 0.004 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.000 | 0.001 |
| Research integrity | 0.001 | 0.002 |
| Insufficient payload (model declined to judge) | 0.008 | 0.001 |
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".