Public Health Nutrition: 13(9), 1430–1437 doi:10.1017/S1368980010000832 Associations of television viewing, physical activity and dietary behaviours with obesity in aboriginal and non-aboriginal Canadian youth
Bibliographic record
Abstract
Objective: To determine associations of diet, physical activity and television (TV) viewing time with obesity among aboriginal and non-aboriginal youth in conjunction with socio-economic variables. Design: Cross-sectional study of differences between aboriginal and non-aboriginal groups and associations between lifestyle and socio-economic factors with obesity were examined. Setting: Population data from the Canadian Community Health Survey Cycle 2?2 conducted in 2004 in the ten provinces of Canada. Subjects: A total of 198 aboriginal and 4448 non-aboriginal Canadian youth aged 12–17 years. Results: Compared to non-aboriginal youth, physical activity participation among aboriginal youth was higher, but consumption of vegetables and dairy products was lower, and more aboriginal youth were ‘high ’ TV watchers. Low income adequacy was associated with decreased odds for obesity among aboriginal youth in contrast to higher odds among non-aboriginal youth. Non-aboriginal ‘high ’ TV watchers consumed more soft drinks and non-whole-grain products than did ‘low ’ TV watchers. Physical activity participation did not differ between ‘high ’ and ‘low ’ TV watchers for both groups, and was associated with lowered odds for obesity only among aboriginal youth. Conclusions: Sociodemographic and lifestyle risk factors associated with obesity differ between aboriginal and non-aboriginal youth. These findings may be useful for guiding intervention efforts.
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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 | 0.001 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.002 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.003 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.081 | 0.013 |
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".