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Inj Prev. 2021 Dec;27(6):577-581. doi: 10.1136/injuryprev-2021-044196. Epub 2021 May 19.

Systematic review of child passenger safety laws and their associations with child restraint system use, injuries and deaths.

Injury prevention : journal of the International Society for Child and Adolescent Injury Prevention

Emma B Sartin, Leah R Lombardi, Jessica H Mirman

Affiliations

  1. Center for Injury Research and Prevention, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA [email protected].
  2. Center for Injury Research and Prevention, The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA.
  3. Department of Clinical and Health Psychology, Centre for Applied Developmental Psychology, School of Health in Social Science, The University of Edinburgh, Edinburgh, Edinburgh, UK.

PMID: 34011513 DOI: 10.1136/injuryprev-2021-044196

Abstract

BACKGROUND AND OBJECTIVE: Many countries and all US states have legislation that mandates how children of certain ages and/or sizes should be restrained in vehicles. The objective of the current systematic review was to describe the associations between legislation and three outcomes: child restraint system use, correct child restraint system use and child passenger injuries/deaths.

METHODS: Included studies were published between 2004 and 2020 and evaluated associations between child passenger safety laws and the outcomes described above. Three literature searches using three search terms (child passenger safety, car seat use, booster seat use) were completed in PubMed and PsycINFO, with the last search occurring in January 2021. Studies are presented based on the outcome(s) they evaluated. The original protocol for this review is registered with PROSPERO (ID: CRD42019149682).

RESULTS: Eighteen studies from five different countries evaluating a variety of different types of legislation were included. Overall, positive associations between legislation and the three outcomes were reported. However, there were important nuances across studies, including negative associations between booster seat legislation and correct child restraint use. Further, there were also negative associations between various types of legislation and outcomes for populations with less formal education and lower incomes, and for racial and ethnic minorities.

CONCLUSION: Overall, child passenger safety legislation appears to be positively associated with child restraint system use, correct child restraint use and child passenger injuries/deaths. However, there is a need to more comprehensively characterise how different types of legislation influence child passenger safety outcomes to promote equitable effects across populations.

© Author(s) (or their employer(s)) 2021. No commercial re-use. See rights and permissions. Published by BMJ.

Keywords: child; legislation; motor vehicle occupant; systematic review

Conflict of interest statement

Competing interests: None declared.

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