The impact of child safety restraint legislation on child injuries in police-reported motor vehicle collisions in British Columbia: An interrupted time series analysis

BACKGROUND/OBJECTIVE

Motor vehicle collisions (MVCs) remain a leading cause of death and serious injury in Canadian children. In July 2008, British Columbia introduced child safety seat legislation that aimed to reduce the number of children killed or injured in MVCs. This legislation upgraded previous child seat legislation (introduced in 1985) and affected children zero to three and those four to eight years of age. The objective of the present study was to evaluate the effectiveness of this legislation.

METHODS

Deidentified police reports for all MVCs involving zero- to 14-year-olds (2000 to 2012) were used to compare injury rates, booster seat use, and seating position among children before and after booster seat laws. An interrupted time series design was used to estimate the effect of the new law on injuries among children zero to three and four to eight years of age. Estimates were adjusted using children nine to 14 years of age as controls.

RESULTS

The booster seat law was associated with a 10.8% (95% CI 2.7% to 18.9%) reduction in the monthly rate of injuries in four- to eight-year-old children (P=0.01). This was equivalent to a decrease of 14.3 injuries per 1,000,000 children. Similarly, the monthly injury rate among children zero to three years of age decreased by 13.0% (95% CI 1.5% to 24.6% [9.8 injuries per 1,000,000]; P=0.03).

CONCLUSION

The results provide evidence that British Columbia's new child safety restraint law was associated with fewer injuries among children covered by the new laws.

Assessment of cardiorespiratory stability using the infant car seat challenge before discharge in preterm infants (<37 weeks' gestational age)

Preterm infants younger than 37 weeks corrected gestational age are at increased risk for abnormal control of respiration. The infant car seat challenge has been used as a screening tool to ensure cardiorespiratory stability before discharging preterm infants from many hospitals in Canada. While it is clear that infants placed in a car seat are more likely to experience oxygen desaturation and/or bradycardia than when they are supine, neither positioning predicts an adverse neurodevelopmental outcome or mortality post-discharge. A review of the literature yielded insufficient evidence to recommend routine use of the infant car seat challenge as part of discharge planning for preterm infants. This finding has prompted a change in recommendation from a previous Canadian Paediatric Society position statement published in 2000.

An evaluation of evidence-based paediatric injury prevention policies across Canada

BACKGROUND

Policies to reduce injury among Canadians can be controversial and there is variability in the enactment of injury prevention laws across the country. In general, laws are most effective when they are based on good research evidence, supported by widespread public awareness and education, and maintained by consistent enforcement strategies. The purpose of this study was to document and compare key informants' perceptions of the quality, awareness, and enforcement of three evidence-based paediatric injury prevention policies (bicycle helmet legislation, child booster seat legislation, graduated driver licensing) among Canadian provinces and territories.

METHODS

We identified best practices related to each policy, then developed an online survey to ascertain the extent to which each jurisdiction's policy aligned with best practices, whether experts believed that the public was aware of the policy and whether it was enforced. The survey was distributed using a snowball sampling strategy to key informants across Canada.

RESULTS

Thirty-eight key informants responded to the bicycle helmet survey, with 73 and 35 key informants for the booster seat and graduated driver licensing surveys, respectively. Respondent's perceptions of the policies varied substantially. Key informants indicated that residents are not always aware of legislation, and legislation is not consistently enforced. These results suggest that child health policy is not always guided by evidence.

CONCLUSIONS

There was variation between evidence and the policies related to paediatric injury prevention among Canadian provinces and territories. Experts generally rate their policies more highly when they align with evidence and best practice. There is room for improvement and harmonization of injury prevention policies.

Child and youth injury prevention: A public health approach

The majority of child and youth injuries are preventable. This statement provides background, direction and a statement of commitment to the issue of child and youth injury prevention in Canada. It acts as a foundation to build upon by focusing first on definitions, scope and priorities for injury prevention. It also describes the burden and patterns of unintentional injury, and the principles of effective intervention for prevention. A list of resources for obtaining data and evidence-based information is included in the full-text version of this statement (www.cps.ca). This statement can also be used for broad-based injury prevention advocacy.

Burn injury from car seat in an 11-month-old infant

Burns in young infants have long been recognized as a potential cause of nonaccidental injury. Accidental exposure to hot car seat parts resulting in significant burn injury is an unusual mimicker of child abuse. A case involving an 11-month-old child who presented with a significant contact burn injury related to the noncovered, heated, plastic part of a car seat, is described. The present case encourages physicians to maintain an unbiased approach to each referred case and to explore the differential diagnosis by detailed history and physical examination. It also serves as a reminder in caregiver education about the precautions to be taken during long-distance travel with young children and infants.