Child restraint laws across many states have gaps that leave unprotected passengers highly vulnerable to vehicle-crash injuries, a study by New York University has found.
The findings, which appear in the journal Social Science and Medicine, show that many child restraint laws lag behind existing research on vehicular safety and fail to follow guidelines adopted by medical experts.
In the U.S., nearly 250,000 children are injured every year in car crashes and approximately 2,000 die from their injuries. Moreover, the child passenger fatality rate in the U.S. is at least double that of other comparable wealthy nations. Previous studies have shown that the proper use and placement of child restraint devices can reduce the injuries and fatalities.
The Social Science and Medicine study, conducted by researchers at NYU's Steinhardt School of Culture, Education, and Human Development, in collaboration with Temple University's Center for Health, Law, Policy, and Practice, examined child passenger safety laws from 1978 to 2010 in all 50 states, analyzing changes over time and inter-state differences.
The results showed that some state child restraint laws, such as those in Arizona, Michigan, and South Dakota, covered children only up until the age of four. However, the American Association of Pediatrics recommends the use of child restraint devices until the vehicle seat belt fits them properly, which is typically when they have reached 4 feet 9 inches in height and are between 8 and 12 years of age.
In other cases, the researchers found, lack of clarity on existing laws has created the possibility for confusion.
For instance, even when states have laws covering children of older ages, many of them fail to distinguish child passengers in need of rear-facing infant seats from those that should use forward-facing car safety seats (CSS) or booster seats. In 2010, only 12 states explicitly required the use of booster seats while nine mandated infant seats and six required forward-facing CSS.
The researchers also pointed to the high number of exemptions that state laws grant. For instance, as of 2010, 33 states failed to protect child passengers if the drivers are driving commercial passenger vehicles. As of 2010, 16 states exempted drivers that carry more children than their vehicle space can handle -- as long as the drivers used restraint devices for as many children as the space allowed.
The researchers noted the legal terrain for child restraint laws differed sharply from that for state alcohol laws -- and suggested that federal incentives may explain the difference.
The number of states with 21-year minimum legal drinking age (MLDA) increased from 17 in 1984 to all 50 in 1988 -- four years after Congress passed the National MLDA Act conditioning states' enactment of such law to the continued full provision of the highway funds. Similarly, the number of states with the law limiting the legal blood alcohol concentration to 0.08 percent increased from 19 states in 2000 to all 50 in 2006 -- six years after Congress passed an act tying each state's enactment of such laws to the continued provision of federal highway funds.
An interactive map of child restraint laws across all 50 states is available at: http://bit.ly/1gNo5nK.
- Jin Yung Bae, Evan Anderson, Diana Silver, James Macinko. Child Passenger Safety Laws in the United States, 1978-2010: Policy Diffusion in the Absence of Strong Federal Intervention. Social Science & Medicine, 2013; DOI: 10.1016/j.socscimed.2013.10.035
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