Original Investigation

Children’s Height and Injury Risk With Child Restraint Systems

JAMA Network Open 10.1001/jamanetworkopen.2026.24972

July 23, 2026 at 11:00 AM EDT

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Is children’s height associated with variations in injury patterns among those using child restraint systems (CRSs) or seat belts (SBs)? In this cohort study of 6503 children involved in motor vehicle crashes and evaluated at trauma centers, CRS use was associated with a lower prevalence of abdominal injuries in children measuring 110 to 140 cm; however, these children had a higher frequency of serious spinal and thoracic injuries compared with SB users. These findings suggest a nonlinear association between pediatric stature and injury anatomy.

Corresponding Author: Shu-Jung Huang, MD, Department of Pediatrics, Jen-Ai Hospital, Dali Branch, 483 Dong Rong Rd, Dali, Taichung 406, Taiwan (jen.y285@mail.jah.org.tw).

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