A comparison of booster seat use in Canadian provinces with and without legislation
Bibliographic record
Abstract
BACKGROUND: The use of booster seats continues to be low, despite their effectiveness in reducing injury in motor vehicle collisions. Many jurisdictions have introduced legislation requiring the use of booster seats. To date, there have been no Canadian studies evaluating the effectiveness of legislation on booster seat use. OBJECTIVES: To describe restraint use among Canadian children aged 4-8 years, and compare booster seat use between provinces/territories with and without legislation. METHODS: The data were obtained from a National Survey of Child Restraint Use/Misuse conducted between June and August 2006. A roadside observation survey was conducted at 182 sites across Canada. Weighted statistical analyses of differences in proportions were conducted, accounting for sampling stratification and clustering by car effects. RESULTS: The roadside survey estimated that 24.6% of children aged 4-8 were restrained in booster seats in provinces with legislation, compared with 16.6% in provinces without (p<0.001). CONCLUSION: This is the first Canadian national study using direct observation to determine the effect of legislation on booster seat use. Provinces with legislation had higher booster seat use, but overall rates were still disappointingly low. Ongoing surveillance of child safety seat use and evaluation of effective adjuncts to legislation is required in order to see collision-related child deaths and injuries drop in the future.
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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 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 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".