Study: Many use child car seats improperly

FRESNO, Calif.

The non profit group "Safe Kids USA" says only 30 percent are used properly, with the tether straps, not just seat belts.

The study of 79,000 car seats is believed to be the largest study ever done of child seats. Properly used child safety seats decrease the risk of death by 71% for infants and 54% for toddlers. National Child Passenger Safety Week is September 18-24.

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