Perinatal and childhood risk factors for overweight in a provincial sample of Canadian Grade 5 students
Bibliographic record
Abstract
BACKGROUND: The risk of obesity is determined by a complex interaction of prenatal, lifestyle, genetic, and environmental factors. OBJECTIVE: To investigate the differential impact of prenatal, child, and family factors on body weight status in childhood. METHODS: The current study links population-based survey data of Grade 5 students who participated in the 2003 Children's Lifestyle and School Performance Study in Nova Scotia, Canada, with a provincial perinatal registry. Multilevel logistic regression was used to investigate the association between prenatal, lifestyle, and socioeconomic factors and childhood overweight. RESULTS: Of the 4 298 participating children, 3 426 (80%) could be linked with information in the perinatal registry. Small-for-gestational age infants appeared to be less likely to be overweight at age 10 or 11 years (odds ratio [OR]=0.68) whereas those born large-for-gestational age were more likely to be overweight (OR=1.23). Maternal pre-pregnancy weight was associated with childhood overweight (OR=4.42 for >80 kg vs. <60 kg) as were the child's physical activity (OR=0.65 for >7x/week vs. < or =2x/week) and screen time (OR=1.82 for >6 h/day vs. < or =1h/day). Smoking during pregnancy increased the child's odds for being overweight (OR=1.42 for >0.5 packs/day vs. none). Children living in neighborhoods with higher housing values were less likely to be overweight (OR=0.68 for highest vs. lowest tertile). CONCLUSIONS: Overweight young women should be advised on the importance of healthy eating, active living and maintaining a healthy weight in the pre-pregnancy years to reduce the risk of overweight in their offspring.
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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 | 0.000 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 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".