Trends in weight‐related attitudes and behaviours among New Zealand adolescents, between 2007 and 2012
Bibliographic record
Abstract
AIM: To explore secular trends of adolescent weight control concerns and behaviours, between 2007 and 2012, and determine if these vary by body size. METHODS: Data were drawn from two nationally representative youth health surveys, Youth'07 and Youth'12. Multiple logistic regression models were used to determine differences in the prevalence of weight control behaviours and concerns between the two time points, controlling for socio-demographic variables. RESULTS: Between 2007 and 2012, both boys and girls were significantly more likely to report concerns about their weight, though the prevalence of trying to lose weight increased for boys, but not girls. Trends in weight control behaviours varied by body size for boys and girls. Perhaps the most striking findings were the increases in proportions of underweight girls and healthy weight boys who were trying to lose weight. CONCLUSIONS: The current study highlights the growing concerns that young people are experiencing in relation to weight control. Given the persistently high rates of adolescent obesity in New Zealand and globally, greater support for young people with regards to healthy eating and weight management is warranted.
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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 | 0.001 | 0.002 |
| 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 | 0.001 | 0.001 |
| Open science | 0.000 | 0.001 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.002 | 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".