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Am J Public Health. 2009 Feb;99(2):252-7. doi: 10.2105/AJPH.2007.131128. Epub 2008 Dec 4.

The effectiveness of child restraint systems for children aged 3 years or younger during motor vehicle collisions: 1996 to 2005.

Author information

1
Traffic Safety Center, School of Public Health, University of California, Berkeley, CA 94720-7374, USA. tomrice@berkeley.edu

Abstract

OBJECTIVES:

We estimated the effectiveness of child restraints in preventing death during motor vehicle collisions among children 3 years or younger.

METHODS:

We conducted a matched cohort study using Fatality Analysis Reporting System data from 1996 to 2005. We estimated death risk ratios using conditional Poisson regression, bootstrapping, multiple imputation, and a sensitivity analysis of misclassification bias. We examined possible effect modification by selected factors.

RESULTS:

The estimated death risk ratios comparing child safety seats with no restraint were 0.27 (95% confidence interval [CI] = 0.21, 0.34) for infants, 0.24 (95% CI = 0.19, 0.30) for children aged 1 year, 0.40 (95% CI = 0.32, 0.51) for those aged 2 years, and 0.41 (95% CI = 0.33, 0.52) for those aged 3 years. Estimated safety seat effectiveness was greater during rollover collisions, in rural environments, and in light trucks. We estimated seat belts to be as effective as safety seats in preventing death for children aged 2 and 3 years.

CONCLUSIONS:

Child safety seats are highly effective in reducing the risk of death during severe traffic collisions and generally outperform seat belts. Parents should be encouraged to use child safety seats in favor of seat belts.

PMID:
19059860
PMCID:
PMC2622795
DOI:
10.2105/AJPH.2007.131128
[Indexed for MEDLINE]
Free PMC Article
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