Context Once children have outgrown car seats, booster seats protect from injury
better than lap and shoulder belts alone. However, the majority of children
aged 4 to 8 years use only an adult seat belt.
Objective To evaluate the effectiveness of a multifaceted community booster seat
campaign in increasing observed booster seat use among child passengers in
Design Prospective, nonrandomized, controlled community intervention trial.
Setting and Participants The campaign was initiated in 4 communities in the greater Seattle,
Wash, area between January 2000 and March 2001. Eight communities in Portland,
Ore, and Spokane, Wash, served as control sites. We observed 3609 booster-eligible
children (those aged 4-8 years and weighing 18-36 kg [40-80 lb]).
Main Outcome Measure Observed booster seat use 15 months after the start of the campaign.
Results Before the campaign began, 13.3% of eligible children in the intervention
communities and 17.3% in the control communities were using booster seats,
adjusting for child age, driver seat belt use, and sex of driver. Fifteen
months after the start of the campaign, adjusted booster seat use had increased
to 26.1% in the intervention communities and 20.2% in the control communities
(P = .008 for the difference in time trends between
intervention and control communities).
Conclusion These data suggest that a multifaceted community education campaign
can significantly increase the use of child booster seats.