69 Infant Mortality in Car Seats
Bibliographic record
Abstract
Cardiorespiratory events and episodes of decreased oxygenation have been reported in infants positioned in car safety seats. It is believed that former premature infants travelling in car seats are at risk of life-threatening events and it has been postulated that this could eventually cause sudden death. However, there is no data available on the prevalence of such events. The aim of our study was to determine exactly the incidence of infant sudden death occurring in car seats or similar devices. We reviewed retrospectively the circumstances of death in all cases of sudden unexpected death between 0 and 1 year of age from 1991 to 2000 in the province of Quebec. During the 10-year period of interest, there have been 501 cases of sudden and unexpected deaths of non-accidental nature of which 409 were of no apparent cause (sudden infant death, SID). The exact circumstances and positioning at the moment of death are known for 96% of the cases. 13 deaths occurred while the victim was in a sitting position of which 8 were a SID (2% of 409). Of these 8 cases, only 4 occurred while travelling in a car seat, the others were at home in a car seat or a similar device. 38% of the infants dying in a sitting position were younger than one month old whereas only 13% were younger than one month in the group not found in sitting position (p<0.01). The proportion of premature babies was not different between these two groups. Few deaths occur in car seats or similar devices in our population. Nevertheless, many of these deaths occur in young infants; we should therefore continue the recommendation to limit car seat travelling and their duration for these infants. In addition, we should consider limiting the use of car seats or similar devices at home because sudden death also occur in these circumstances.
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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 | 0.002 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| 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) | 0.002 | 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".