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Whether wearing a safety belt or buckled in a car safety seat at the time of the accident

Codes and Frequencies

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For all injury episodes that occurred during the past 3 months, IRSBELT reports whether or not the person was restrained at the time of the accident.

IRSBELT is an injury-level variable.

IRSBELT is part of a series of variables initiated in 1997 that systematically report persons' injuries and poisonings, the cause, what the person was doing while sustaining the injury or poisoning, and where she/he was at the time of the injury or poisoning. For related variables and additional information, please see the User note on Injuries and Poisonings or use the IPUMS NHIS search function and drop-down menus.


This variable is comparable across available years.


  • 1997-2013; 2014 2015 2016 2017: All injuries occurred while a driver or passenger of a car or truck


  • 1997-2017