Related Experiment Video
Updated: Aug 10, 2026

A Test Bed to Examine Helmet Fit and Retention and Biomechanical Measures of Head and Neck Injury in Simulated Impact
Published on: September 21, 2017
Racial differences in child safety restraint use in Tennessee
V L Gunn1, R M Phillippi, W O Cooper
1Department of Pediatrics, Child and Adolescent Health Research Unit, Division of General Pediatrics, Vanderbilt University School of Medicine, Nashville, TN 37232-2504, USA. veronica.gunn@vanderbilt.edu
Objectives:
To evaluate the appropriate use of child safety restraints (CSR) in black and white children.
Design:
Cross sectional, observational study of drivers of children age 0-10 years involving an on-site vehicle and CSR inspection and brief driver interview.
Results:
Data were obtained on 244 white and 204 black children; results were stratified by race due to effect modification of race on driver restraint use and CSR use. Twenty four percent of black and 13% of white child passengers aged 4-10 years were completely unrestrained (p=0.003). Of the 168 black and 220 white child passengers aged 0-10 years who were restrained, 64% of black and 58% of white children had inappropriate restraint use. Appropriate CSR use was significantly lower in 4-8 year old passengers compared with appropriately restrained children aged <4 years and 9-10 years (p<0.0001 for both black and white child passengers).
Conclusions:
Black child passengers and all child passengers aged 4-8 years are at increased risk of being inappropriately restrained. Educational efforts should address specific barriers to booster seat use in these populations.
Related Concept Videos
Surveys
Regression Toward the Mean
Introduction to Test of Independence
The test statistic for a test of independence is similar to that of a goodness-of-fit test:
Hypothesis Test for Test of Independence
H0: The two variables (factors)...
Assessment of Airway, Skin Color, and Use of Accessory Muscles
Introduction
The initial evaluation of a patient's respiratory system...
Relative Risk

